Parathyroid adenoma classification: Difference between revisions

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==Classification==
==Classification==
Parathyroid may be classified according to location into 7 subtypes: <ref name="pmid19148701">{{cite journal| author=Perrier ND, Edeiken B, Nunez R, Gayed I, Jimenez C, Busaidy N et al.| title=A novel nomenclature to classify parathyroid adenomas. | journal=World J Surg | year= 2009 | volume= 33 | issue= 3 | pages= 412-6 | pmid=19148701 | doi=10.1007/s00268-008-9894-0 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=19148701  }} </ref>


There is no established system for the classification of [disease name].
{|
 
! style="background:#4479BA; color: #FFFFFF;" align="center" + | Type
OR
! style="background:#4479BA; color: #FFFFFF;" align="center" + | Location
 
|-
[Disease name] may be classified according to [classification method] into [number] subtypes/groups:  
| style="background:#DCDCDC;" align="center" + | Type A
*[Group1]
| style="background:#F5F5F5;" + |
*[Group2]
* Adherent to the posterior thyroid parenchyma
*[Group3]
* Expected location of a normal gland
*[Group4]
* Almost attached
 
* Almost intracapsular
OR
|-
 
| style="background:#DCDCDC;" align="center" + | Type B
[Disease name] may be classified into [large number > 6] subtypes based on:
| style="background:#F5F5F5;" + |
*[Classification method 1]
* Back behind the thyroid parenchyma
*[Classification method 2]
* Exophytic to the thyroid parenchyma
*[Classification method 3]
* Lies in the tracheoesophageal groove
 
* '''B+ gland''': An undescended gland high in the neck near the carotid bifurcation or mandible
[Disease name] may be classified into several subtypes based on:  
|-
*[Classification method 1]
| style="background:#DCDCDC;" align="center" + | Type C
*[Classification method 2]
| style="background:#F5F5F5;" + |
*[Classification method 3]
* Could be mistaken for the esophagus when palpated
 
* Caudal to the thyroid parenchyma, in the tracheoesophageal groove
OR
* More inferior than a type B gland on lateral views
 
* Situated at the level of the inferior pole of the thyroid or inferior to the inferior pole of the thyroid (closer to the clavicle)
Based on the duration of symptoms, [disease name] may be classified as either acute or chronic.
|-
 
| style="background:#DCDCDC;" align="center" + | Type D
OR
| style="background:#F5F5F5;" + |
 
* Dissection is difficult as the gland is dangerously close to the recurrent laryngeal nerve
'''If the staging system involves specific and characteristic findings and features:'''
|-
 
| style="background:#DCDCDC;" align="center" + | Type E
According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].
| style="background:#F5F5F5;" + |
 
* The most externally located gland
OR
* Easy to resect
 
|-
The staging of [malignancy name] is based on the [staging system].
| style="background:#DCDCDC;" align="center" + | Type F
 
| style="background:#F5F5F5;" + |
OR
* Fallen into the thyrothymic ligament
 
* May be referred as "ectopic"
There is no established system for the staging of [malignancy name].
* Can be usually retrieved with delivery of the superior portion of the thymus
|-
| style="background:#DCDCDC;" align="center" + | Type G
| style="background:#F5F5F5;" + |
* Got caught in thyroid tissue
* Gated into the thyroid parenchyma
* A true intra intrathyroidal gland is rare
|}


==References==
==References==

Revision as of 15:20, 5 March 2019

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

Overview

There is no established system for the classification of [disease name].

OR

[Disease name] may be classified according to [classification method] into [number] subtypes/groups: [group1], [group2], [group3], and [group4].

OR

[Disease name] may be classified into [large number > 6] subtypes based on [classification method 1], [classification method 2], and [classification method 3]. [Disease name] may be classified into several subtypes based on [classification method 1], [classification method 2], and [classification method 3].

OR

Based on the duration of symptoms, [disease name] may be classified as either acute or chronic.

OR

If the staging system involves specific and characteristic findings and features: According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].

OR

The staging of [malignancy name] is based on the [staging system].

OR

There is no established system for the staging of [malignancy name].

Classification

Parathyroid may be classified according to location into 7 subtypes: [1]

Type Location
Type A
  • Adherent to the posterior thyroid parenchyma
  • Expected location of a normal gland
  • Almost attached
  • Almost intracapsular
Type B
  • Back behind the thyroid parenchyma
  • Exophytic to the thyroid parenchyma
  • Lies in the tracheoesophageal groove
  • B+ gland: An undescended gland high in the neck near the carotid bifurcation or mandible
Type C
  • Could be mistaken for the esophagus when palpated
  • Caudal to the thyroid parenchyma, in the tracheoesophageal groove
  • More inferior than a type B gland on lateral views
  • Situated at the level of the inferior pole of the thyroid or inferior to the inferior pole of the thyroid (closer to the clavicle)
Type D
  • Dissection is difficult as the gland is dangerously close to the recurrent laryngeal nerve
Type E
  • The most externally located gland
  • Easy to resect
Type F
  • Fallen into the thyrothymic ligament
  • May be referred as "ectopic"
  • Can be usually retrieved with delivery of the superior portion of the thymus
Type G
  • Got caught in thyroid tissue
  • Gated into the thyroid parenchyma
  • A true intra intrathyroidal gland is rare

References

  1. Perrier ND, Edeiken B, Nunez R, Gayed I, Jimenez C, Busaidy N; et al. (2009). "A novel nomenclature to classify parathyroid adenomas". World J Surg. 33 (3): 412–6. doi:10.1007/s00268-008-9894-0. PMID 19148701.

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