Sideroblastic anemia diagnostic study of choice: Difference between revisions

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Revision as of 15:25, 8 August 2018

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

Overview

Diagnostic Study of Choice

Bone marrow aspiration and biopsy is the gold standard test for the diagnosis of sideroblastic anemia.
Light microscopy, prussian blue staining and electron microscopy is performed on bone marrow biopsy sample.

Diagnostic results

The following finding on performing the bone marrow biopsy is confirmatory for sideroblastic anemia.

Bone marrow aspirate smear

Normoblastic erythroid hyperplasia
RBC precursors with pale cytoplasm
Dysplastc changes ( in MDS disorders)

Prussian blue staining

prussian blue staining of bone marrow aspirate reveals:

Red cell precursors with numerous iron- positive granules surrounding the nucleus,
In most cases these iron deposits form a complete ring around the nucleus.

Electron microscopy

The electron microscopy of an erythroblast shows iron laden mitochondria

These iron deposits are clustered around mitochondria nucleus

Sequence of Diagnostic Studies

The [name of investigation] must be performed when:

The patient presented with symptoms/signs 1, 2, and 3 as the first step of diagnosis.
A positive [test] is detected in the patient, to confirm the diagnosis.

OR

The various investigations must be performed in the following order:

[Initial investigation]
[2nd investigation]

Name of Diagnostic Criteria

It is recommended that you include the criteria in a table. Make sure you always cite the source of the content and whether the table has been adapted from another source.

[Disease name] is primarily diagnosed based on clinical presentation. There are no established criteria for the diagnosis of [disease name].

OR

There is no single diagnostic study of choice for [disease name], though [disease name] may be diagnosed based on [name of criteria] established by [...].

OR

The diagnosis of [disease name] is made when at least [number] of the following [number] diagnostic criteria are met: [criterion 1], [criterion 2], [criterion 3], and [criterion 4].

OR

The diagnosis of [disease name] is based on the [criteria name] criteria, which includes [criterion 1], [criterion 2], and [criterion 3].

OR

[Disease name] may be diagnosed at any time if one or more of the following criteria are met:

Criteria 1
Criteria 2
Criteria 3

OR

IF there are clear, established diagnostic criteria

The diagnosis of [disease name] is made when at least [number] of the following [number] diagnostic criteria are met: [criterion 1], [criterion 2], [criterion 3], and [criterion 4].

OR

The diagnosis of [disease name] is based on the [criteria name] criteria, which include [criterion 1], [criterion 2], and [criterion 3].

OR

The diagnosis of [disease name] is based on the [definition name] definition, which includes [criterion 1], [criterion 2], and [criterion 3].

OR

IF there are no established diagnostic criteria

There are no established criteria for the diagnosis of [disease name].

References

Template:WH Template:WS

@@ Line 5: / Line 5: @@
 == Diagnostic Study of Choice ==
-<blockquote>Study of choiceSideroblastic anemia is suspected in patients with microcytic anemia or a high RDW anemia, particularly with increased serum iron, serum ferritin, and transferrin saturation</blockquote>
 * Bone marrow aspiration and  biopsy is the gold standard test for the diagnosis of sideroblastic anemia.
 * Light microscopy, prussian blue staining and electron microscopy is performed on bone marrow biopsy sample.
-* The following result of [these tests are  confirmatory of sideroblastic anemia.
+=== Diagnostic results ===
+The following finding on performing the bone marrow biopsy is confirmatory for sideroblastic anemia.
-**
+===== Bone marrow aspirate smear =====
-** [Result 2]
+* Normoblastic erythroid hyperplasia
+* RBC precursors with pale cytoplasm
+* Dysplastc changes ( in MDS disorders)
-Investigations:
+==== Prussian blue staining ====
-* Among the patients who present with clinical signs of [disease name], the [investigation name] is the most specific test for the diagnosis.
+prussian blue staining of bone marrow aspirate reveals:
-* Among the patients who present with clinical signs of [disease name], the [investigation name] is the most sensitive test for diagnosis.
+* Red cell precursors with numerous iron- positive granules surrounding the nucleus,
-* Among the patients who present with clinical signs of [disease name], the [investigation name] is the most efficient test for diagnosis.
+* In most  cases these iron deposits form a complete ring around the nucleus.
-==== The comparison of various diagnostic studies for [disease name] ====
+==== Electron microscopy ====
-{|
+* The electron microscopy of an erythroblast shows iron laden mitochondria
-|- style="background: #4479BA; color: #FFFFFF; text-align: center;"
-! style="background: #4479BA; color: #FFFFFF; text-align: center;" | Test
-! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Sensitivity
-! style="background: #4479BA; color: #FFFFFF; text-align: center;" |Specificity
-|-
-! style="background: #696969; color: #FFFFFF; text-align: center;" |Test 1
-| style="background: #DCDCDC; padding: 5px; text-align: center;" |...%
-| style="background: #DCDCDC; padding: 5px; text-align: center;" |...%
-|-
-! style="background: #696969; color: #FFFFFF; text-align: center;" |Test 2
-| style="background: #DCDCDC; padding: 5px; text-align: center;" |...%
-| style="background: #DCDCDC; padding: 5px; text-align: center;" |...%
-|}
-<small> [Name of test with higher sensitivity and specificity] is the preferred investigation based on the sensitivity and specificity</small>
-===== Diagnostic results =====
+* These iron deposits are clustered around mitochondria nucleus
-The following finding(s) on performing [investigation name] is(are) confirmatory for [disease name]:
-* Ringed sideroblasts: at least 15 % of red cell precursor should be sideroblasts to make the diagnosis of sideroblastic anemia.
-* [Finding 2]
 ===== Sequence of Diagnostic Studies =====