Pleomorphic adenoma classification: Difference between revisions
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==Overview== | ==Overview== | ||
Pleomorphic adenoma can be classified on the basis of histological appearance and stromal content | Pleomorphic adenoma can be classified into 4 subgroups on the basis of histological appearance and stromal content. Subgroup 1(30-50%) of stromal content, subgroup 2(80%), subgroup 3(20-30%), subgroup 4(6%). | ||
==Classification== | ==Classification== | ||
Revision as of 16:41, 22 January 2019
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Pleomorphic adenoma Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
Pleomorphic adenoma can be classified into 4 subgroups on the basis of histological appearance and stromal content. Subgroup 1(30-50%) of stromal content, subgroup 2(80%), subgroup 3(20-30%), subgroup 4(6%).
Classification
- Pleomorphic adenoma can be classified on the basis of the histological picture i.e, epithelial and stromal changes into the following subgroups.[1]
- Subgroup 1 (30,5%) is the classical pleomorphic adenoma with a stroma content of 30-50%
- subgroup 2 (55%) has a stroma content of 80%
- subgroup 3 (9%) has a poor stroma content of 20-30% or less and an epithelial differentiation similar to subgroup 1
- subgroup 4 has also a poor stroma content (6%) with a relatively monomorphic epithelial structure.