Thrombocytosis differential diagnosis: Difference between revisions

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! rowspan="5" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Acquried
! rowspan="5" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Acquried
! colspan="9" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Clinical manifestations
! colspan="9" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Clinical manifestations
! colspan="9" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Para−clinical findings
! colspan="8" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Para−clinical findings
! colspan="1" rowspan="5" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
! colspan="1" rowspan="5" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
! rowspan="5" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Associated findings
! rowspan="5" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Associated findings
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| colspan="4" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Signs
| colspan="4" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Signs
|-
|-
! colspan="8" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Lab Findings
! colspan="7" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Lab Findings
! rowspan="3" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! rowspan="3" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
|-
|-
! colspan="1" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! colspan="1" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Rash
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Appearance
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
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! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |UA
|-
|-
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Increased megakaryocyte proliferation
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Increased megakaryocyte proliferation
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! style="background: #4479BA; color: #FFFFFF; text-align: center;" |WBC
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |WBC
|-
|-
! rowspan="7" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Autonomous thrombocytosis
! rowspan="8" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Autonomous thrombocytosis
! rowspan="6" align="center" style="background:#DCDCDC;" |Hematologic malignancies
! rowspan="6" align="center" style="background:#DCDCDC;" |Hematologic malignancies
! align="center" style="background:#DCDCDC;" |[[Essential thrombocytosis|Essential thrombocythemia]]
! align="center" style="background:#DCDCDC;" |[[Essential thrombocytosis|Essential thrombocythemia]]<ref name="Brière2007">{{cite journal|last1=Brière|first1=Jean B|journal=Orphanet Journal of Rare Diseases|volume=2|issue=1|year=2007|pages=3|issn=17501172|doi=10.1186/1750-1172-2-3}}</ref>
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Acquired mutation of ''JAK2, CALR,'' or ''MPL''
* Acquired mutation of ''[[Janus kinase|JAK2]], CALR,'' or ''MPL''
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
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| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |Mean age >60 years old, female > male
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Vascular occlusive events and [[Bleeding|hemorrhages]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |±
| align="center" style="background:#F5F5F5;" + |Flushing
| align="center" style="background:#F5F5F5;" + |Flushing
| align="center" style="background:#F5F5F5;" + |+
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |-
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Erythromelalgia]]
| align="center" style="background:#F5F5F5;" + |
* [[Transient ischemic attack|Transient ischemic attacks]]
| align="center" style="background:#F5F5F5;" + |
* [[Priapism]]
| align="center" style="background:#F5F5F5;" + |
* Decreased [[visual acuity]]
* Erythromelalgia
| align="center" style="background:#F5F5F5;" + |↑↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Large [[Platelet|platelets]]
* [[Megakaryocyte]] fragments
* [[Platelet]] aggregates
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Increased cellularity
* Hyperplasia and clustering of megakaryocytes
* Bone marrow [[reticulin]] may be increased with no [[collagen]] fibrosis
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Splenomegaly]] on abdominal CT
| align="center" style="background:#F5F5F5;" + |
* [[VTE]] on spiral chest CT
| align="center" style="background:#F5F5F5;" + |
* [[Deep vein thrombosis|DVT]] on ultrasound
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |[[Bone marrow examination|Bone marrow biopsy]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Thrombo-hemorrhagic complications
* Thrombo-hemorrhagic complications
|-
|-
! align="center" style="background:#DCDCDC;" |[[Polycythemia vera]]
! align="center" style="background:#DCDCDC;" |[[Polycythemia vera]]<ref name="ArberOrazi2016">{{cite journal|last1=Arber|first1=D. A.|last2=Orazi|first2=A.|last3=Hasserjian|first3=R.|last4=Thiele|first4=J.|last5=Borowitz|first5=M. J.|last6=Le Beau|first6=M. M.|last7=Bloomfield|first7=C. D.|last8=Cazzola|first8=M.|last9=Vardiman|first9=J. W.|title=The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia|journal=Blood|volume=127|issue=20|year=2016|pages=2391–2405|issn=0006-4971|doi=10.1182/blood-2016-03-643544}}</ref>
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Acquired mutation of ''JAK2''
* Acquired mutation of ''JAK2''
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| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + |Facial plethora
| align="center" style="background:#F5F5F5;" + |Facial plethora
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + |±
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Erythromelalgia
* [[Erythromelalgia]]
* Pruritus
* [[Itch|Pruritus]]
* [[Tinnitus]]
* [[Blurred vision]]
* [[Lymphadenopathy]]
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑↑
| align="center" style="background:#F5F5F5;" + |↑↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Panmyelosis including prominent [[Red blood cell|erythroid]], [[granulocyte]], and [[megakaryocyte]] proliferation
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Panmyelosis including prominent [[Red blood cell|erythroid]], [[granulocyte]], and [[megakaryocyte]] proliferation
* Pleomorphic, mature [[Megakaryocyte|megakaryocytes]]
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |[[Bone marrow examination|Bone marrow biopsy]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Thrombo-hemorrhagic complications
* Thrombo-hemorrhagic complications
|-
|-
! align="center" style="background:#DCDCDC;" |[[Myelofibrosis|Primary myelofibrosis]]
! align="center" style="background:#DCDCDC;" |[[Myelofibrosis|Primary myelofibrosis]]<ref name="TefferiLasho2012">{{cite journal|last1=Tefferi|first1=Ayalew|last2=Lasho|first2=Terra L.|last3=Jimma|first3=Thitina|last4=Finke|first4=Christy M.|last5=Gangat|first5=Naseema|last6=Vaidya|first6=Rakhee|last7=Begna|first7=Kebede H.|last8=Al-Kali|first8=Aref|last9=Ketterling|first9=Rhett P.|last10=Hanson|first10=Curtis A.|last11=Pardanani|first11=Animesh|title=One Thousand Patients With Primary Myelofibrosis: The Mayo Clinic Experience|journal=Mayo Clinic Proceedings|volume=87|issue=1|year=2012|pages=25–33|issn=00256196|doi=10.1016/j.mayocp.2011.11.001}}</ref>
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Bone marrow fibrosis
* [[Bone marrow]] fibrosis
* Mutation in ''JAK2, CALR'', or ''MPL''
* [[Mutation]] in ''[[Janus kinase|JAK2]], CALR'', or ''MPL''
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
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| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |Mean age >60 years old, male> female
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + |[[Pallor]]
* [[Bruising]]
* [[Nodules|Skin nodules]]
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Fatigue]]
* [[Abdominal pain]]
* Early satiety
* [[Dyspnea]]
* [[Lymphadenopathy]]
| align="center" style="background:#F5F5F5;" + |↑/↓
| align="center" style="background:#F5F5F5;" + |↓
| align="center" style="background:#F5F5F5;" + |↓
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Decreased number of [[Red blood cell|erythroid]], [[granulocyte]], and [[megakaryocyte]] proliferation
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Proliferation and atypia of [[megakaryocytes]]
| align="center" style="background:#F5F5F5;" + |
* Reticulin or [[Collagen|collagen fibrosis]]
| align="center" style="background:#F5F5F5;" + |
* Hypercellular [[bone marrow]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Diffuse bone [[sclerosis]] on [[CT angiography|CT]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |[[Bone marrow examination|Bone marrow biopsy]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Thrombo-hemorrhagic complications
* Thrombo-hemorrhagic complications
*Variable risk for development of [[acute leukemia]]
|-
|-
! align="center" style="background:#DCDCDC;" |[[Chronic myelogenous leukemia|Chronic myeloid leukemia]]
! align="center" style="background:#DCDCDC;" |[[Chronic myelogenous leukemia|Chronic myeloid leukemia]]<ref name="ThompsonKantarjian2015">{{cite journal|last1=Thompson|first1=Philip A.|last2=Kantarjian|first2=Hagop M.|last3=Cortes|first3=Jorge E.|title=Diagnosis and Treatment of Chronic Myeloid Leukemia in 2015|journal=Mayo Clinic Proceedings|volume=90|issue=10|year=2015|pages=1440–1454|issn=00256196|doi=10.1016/j.mayocp.2015.08.010}}</ref>
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Translocation (9;22), the Philadelphia chromosome
* Translocation (9;22), the [[Philadelphia chromosome]]
* ''BCR-ABL1'' oncogene
* [[BCR/ABL|''BCR-ABL1'' oncogene]]
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
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| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |Mean age >50 years old, male> female
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Pallor]]
| align="center" style="background:#F5F5F5;" + |
* [[Bruises]]
| align="center" style="background:#F5F5F5;" + |
* [[Petechiae]]
| align="center" style="background:#F5F5F5;" + |
* [[Ulcers]]
* [[Vesicles]]
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + | -
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Fatigue]]
* [[Abdominal pain]]
* Early satiety
* [[Dyspnea]]
* [[Lymphadenopathy]]
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↓
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Immature [[White blood cells|leukocytes]]
* Immature leukocytes
* Leukemic blasts
* Leukemic blasts
* Leukoerythroblastic features
* Leukoerythroblastic features
* Giant platelets
* Giant platelets
* Blast crisis
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* ↑ Proportion of metamyelocytes and other [[white blood cells]] at various stages of maturation
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Enlarged [[Lymph node|lymph nodes]] and [[splenomegaly]] on [[Computed tomography|CT scan]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |[[Bone marrow examination|Bone marrow biopsy]]
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Increase of immature myeloid cells
* Increase of immature myeloid cells
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| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* History of hematological disorder
* History of [[chemotherapy]] and  [[ionizing radiation]]
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Pallor]]
* [[Chloroma|Leukemia cutis]]
* [[Bruising]]
* [[Petechia|Petechiae]]
* [[Ecchymosis]]
| align="center" style="background:#F5F5F5;" + | +
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |+
| align="center" style="background:#F5F5F5;" + |+
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* [[Fatigue]]
| align="center" style="background:#F5F5F5;" + |
* Bone tenderness
| align="center" style="background:#F5F5F5;" + |
* Early satiety
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |↑/↓
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |↑
| align="center" style="background:#F5F5F5;" + |↑/↓
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Leukemic blasts
* Leukemic blasts
Line 206: Line 256:
* Giant platelets
* Giant platelets
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
* Leukemic cells
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
| align="center" style="background:#F5F5F5;" + |
Line 253: Line 303:
* Hypercellular [[bone marrow]]
* Hypercellular [[bone marrow]]
* [[Fibrosis]]
* [[Fibrosis]]
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |Nl
| align="center" style="background:#F5F5F5;" + |Nl
Line 262: Line 311:
* Thrombosis in younger patients
* Thrombosis in younger patients
* Might transformed to [[acute leukemia]]
* Might transformed to [[acute leukemia]]
|-
! colspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Condition
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Etiology
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Increased megakaryocyte proliferation
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Accelerated platelet release
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Reduced platelet turnover
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Inherited
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Acquried
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Demography
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |History
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Appearance
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Splenomegaly
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Jaundice
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Other signs
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Plt
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |HB
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |WBC
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PBS
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bone marrow exam
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Associated findings
|-
|-
! colspan="2" align="center" style="background:#DCDCDC;" |Familial thrombocytosis
! colspan="2" align="center" style="background:#DCDCDC;" |Familial thrombocytosis
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* Megakaryocytic fragments
* Megakaryocytic fragments
* Platelet hypogranularity
* Platelet hypogranularity
| align="center" style="background:#F5F5F5;" + |
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* High penetrance
* High penetrance
* Polyclonal hematopoiesis
* Polyclonal hematopoiesis
|-
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Category
! colspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Condition
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Etiology
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Increased megakaryocyte proliferation
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Accelerated platelet release
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Reduced platelet turnover
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Inherited
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Acquried
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Demography
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |History
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Rash
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Splenomegaly
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Jaundice
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Other signs
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Plt
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |HB
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |WBC
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PBS
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bone marrow exam
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |UA
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Associated findings
|-
|-
! rowspan="20" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Reactive thrombocytosis
! rowspan="20" style="background: #4479BA; color: #FFFFFF; text-align: center;" |Reactive thrombocytosis
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! style="background: #4479BA; color: #FFFFFF; text-align: center;" |History
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |History
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Rash
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Appearance
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
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! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |UA
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
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* Howell-Jolly bodies
* Howell-Jolly bodies
* Nucleated RBCs
* Nucleated RBCs
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! rowspan="2" |Pseudothrombocytosis
! rowspan="2" |Pseudothrombocytosis
!'''[[Cryoglobulinemia|Mixed cryoglobulinemia]]'''
!'''[[Cryoglobulinemia|Mixed cryoglobulinemia]]'''
!
!
!
!
!
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|-
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!'''Cytoplasmic fragments'''
!'''Cytoplasmic fragments'''
!
!
!
!
!
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! style="background: #4479BA; color: #FFFFFF; text-align: center;" |History
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |History
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Fever
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Rash
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Appearance
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Bleeding
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |BP
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! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |PTT
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |UA
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Imaging
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard
! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Gold standard

Revision as of 17:02, 29 August 2018

Thrombocytosis Microchapters

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]

Overview

Thrombocytosis Differential Diagnosis

Differentiating the diseases that can cause thrombocytosis :

Category Condition Etiology Mechanism Inherited Acquried Clinical manifestations Para−clinical findings Gold standard Associated findings
Demography History Symptoms Signs
Lab Findings Imaging
Fever Appearance Bleeding BP Splenomegaly Jaundice Other CBC PBS Bone marrow exam PT PTT
Increased megakaryocyte proliferation Accelerated platelet release Reduced platelet turnover Plt HB WBC
Autonomous thrombocytosis Hematologic malignancies Essential thrombocythemia[1]
  • Acquired mutation of JAK2, CALR, or MPL
+ - - - + Mean age >60 years old, female > male ± Flushing + Nl + - ↑↑
  • Increased cellularity
  • Hyperplasia and clustering of megakaryocytes
  • Bone marrow reticulin may be increased with no collagen fibrosis
Nl Nl Bone marrow biopsy
  • Thrombo-hemorrhagic complications
Polycythemia vera[2]
  • Acquired mutation of JAK2
+ - - - + Mean age >60 years old - Facial plethora ± Nl + - ↑↑ Bone marrow biopsy
  • Thrombo-hemorrhagic complications
Primary myelofibrosis[3] + - - - + Mean age >60 years old, male> female - Pallor + Nl + + ↑/↓ Bone marrow biopsy
  • Thrombo-hemorrhagic complications
  • Variable risk for development of acute leukemia
Chronic myeloid leukemia[4] + - - - + Mean age >50 years old, male> female + + Nl + -
  • Immature leukocytes
  • Leukemic blasts
  • Leukoerythroblastic features
  • Giant platelets
  • Blast crisis
  • ↑ Proportion of metamyelocytes and other white blood cells at various stages of maturation
Bone marrow biopsy
  • Increase of immature myeloid cells
Acute myeloid leukemia + - - - + + + Nl + +
  • Fatigue
  • Bone tenderness
  • Early satiety
↑/↓ ↑/↓
  • Leukemic blasts
  • Leukoerythroblastic features
  • Giant platelets
  • Leukemic cells
Myelodysplastic syndromes[5]
  • Unknown
  • Mutation
+ - - -/+ + Elderly Exposure to +/- Petechiae, purpura, diffuse erythematous rash + Nl + + ↑/↓
  • Large platelets
  • Ovalomacrocytosis
  • Basophilic stippling
  • Howell-Jolly body
  • Pelger-Huet anomaly
  • Ring sideroblasts
Nl Nl NA Bone marrow examination + clinical manifestation
Condition Etiology Increased megakaryocyte proliferation Accelerated platelet release Reduced platelet turnover Inherited Acquried Demography History Fever Appearance Bleeding BP Splenomegaly Jaundice Other signs Plt HB WBC PBS Bone marrow exam PT PTT Imaging Gold standard Associated findings
Familial thrombocytosis
  • Mutation in TPO and MPL
+ - - + - Nl Nl
  • Giant platelets
  • Platelet conglomerates
  • Bizarre forms
  • Megakaryocytic fragments
  • Platelet hypogranularity
  • Mendelian inheritance
  • High penetrance
  • Polyclonal hematopoiesis
Reactive thrombocytosis Anemia/

blood loss

  • Iron deficiency
  • Blood loss
  • Hemolysis
+
  • History of bleeding or iron deficiency
  • Required iron studies
Infection Chronic infections + +
Tuberculosis + +
Acute bacterial and viral infections + +
Inflammation Vasculitides + +
Acute pancreatitis + +
Malignancy + +
Condition Etiology Increased megakaryocyte proliferation Accelerated platelet release Reduced platelet turnover Inherited Acquried Demography History Fever Appearance Bleeding BP Splenomegaly Jaundice Other signs Plt HB WBC PBS Bone marrow exam PT PTT Imaging Gold standard Associated findings
Tissue damage Thermal burns
Trauma
Myocardial infarction
Medication Myelosuppressive agents
Vincristine
Epinephrine, glucocorticoids
Interleukin-1B
All-trans retinoic acid
Thrombopoietin
Other Post-splenectomy or functional asplenia +
  • Howell-Jolly bodies
  • Nucleated RBCs
Allergic reactions
Exercise
Pseudothrombocytosis Mixed cryoglobulinemia
Cytoplasmic fragments
Category Condition Etiology Increased megakaryocyte proliferation Accelerated platelet release Reduced platelet turnover Inherited Acquried Demography History Fever Appearance Bleeding BP Splenomegaly Jaundice Other signs Plt HB WBC PBS Bone marrow exam PT PTT Imaging Gold standard Associated findings

References

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