Cancer of unknown primary origin classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
Cancer of unknown primary origin may be classified into 4 groups initially according to light microscopy of the biopsy including Adenocarcinomas
- Squamous cell carcinomas
- Poorly differentiated tumors
- Carcinomas with neuroendocrine differentiation
Classification
- Cancer of unknown primary origin may be classified into 4 groups initially according to light microscopy of the biopsy:[1]
- Adenocarcinomas
- Squamous cell carcinomas
- Poorly differentiated tumors
- Carcinomas with neuroendocrine differentiation
[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].