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== Classification ==
== Classification ==
'''Ataxia-Telangiectasia''' is divided into 2 types
<br>* Inherited
<br>* Acquired/degenerative
<br> '''Sporadic''' ataxia means there is no family history of '''A-T'''
<br> '''Acquired ataxia''' is caused by degenerative diseases (eg, [[cerebellar variant of multiple systems atrophy (type C)]]), deficiency states (eg, vitamin B12, vitamin E), infections (eg, [[HIV]], [[sporadic Creutzfeldt-Jakob disease]], [[progressive multifocal leukoencephalopathy]]).
<br> '''Inherited ataxia''' can be caused by X-linked, autosomal or mitochondrial inheritance.{{cite web |url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6585307/}}</ref>
==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==
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]
*[Group4]
OR
[Disease name] may be classified into [large number > 6] subtypes based on:
*[Classification method 1]
*[Classification method 2]
*[Classification method 3]
[Disease name] may be classified into several subtypes based on:
*[Classification method 1]
*[Classification method 2]
*[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].
==References==
{{Reflist|2}}
{{WH}}
{{WS}}
[[Category: (name of the system)]]


So far there appear to be three forms of AT:
So far there appear to be three forms of AT:

Latest revision as of 16:53, 12 June 2020


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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Classification

Ataxia-Telangiectasia is divided into 2 types
* Inherited
* Acquired/degenerative
Sporadic ataxia means there is no family history of A-T
Acquired ataxia is caused by degenerative diseases (eg, cerebellar variant of multiple systems atrophy (type C)), deficiency states (eg, vitamin B12, vitamin E), infections (eg, HIV, sporadic Creutzfeldt-Jakob disease, progressive multifocal leukoencephalopathy).
Inherited ataxia can be caused by X-linked, autosomal or mitochondrial inheritance. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6585307/. Missing or empty |title= (help)</ref>

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

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]
  • [Group4]

OR

[Disease name] may be classified into [large number > 6] subtypes based on:

  • [Classification method 1]
  • [Classification method 2]
  • [Classification method 3]

[Disease name] may be classified into several subtypes based on:

  • [Classification method 1]
  • [Classification method 2]
  • [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].

References

Template:WH Template:WS


So far there appear to be three forms of AT:

  1. Pure AT where patients present with all/most of the diagnostic symptoms.
  2. Attenuated AT where sufferers do not possess all of the diagnostic symptoms.
  3. Carrier AT where individuals with a single ATM mutation show an increased risk of cancer (known since the 1970’s).

These are sometimes classified into ‘types’ from I to IV.

  • Type I is the classic syndrome with all manifestations.
  • Type II lacks some of the typical findings but shows radiosensitivity.
  • Type III has the classic clinical findings but is not radiosensitive.
  • Type IV shows only some clinical features and is not radiosensitive.

References

Template:WH

Template:WS