Difference between revisions of "Epithelioid cell lesions"
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'''Epithelioid cell lesions''' are very common in pathology. Malignant epithelioid lesions are | '''Epithelioid cell lesions''' are very common in pathology. Malignant epithelioid lesions are most often carcinomas... but may be a large number different tumours. | ||
==Classification== | ==Classification== | ||
Revision as of 02:45, 7 October 2013
Epithelioid cell lesions are very common in pathology. Malignant epithelioid lesions are most often carcinomas... but may be a large number different tumours.
Classification
Broadly, epithelioid lesions are split into:
General differential diagnosis
A short DDx:
- Carcinoma (primary and metastatic).
- Malignant melanoma.
- Sarcoma.
Epithelioid sarcomas
All rules are made to be broken... some epithelioid lesions are sarcomas:[1]
- Epithelioid sarcoma.
- Epithelioid angiosarcoma.
- Alveolar soft part sarcoma.
- Rhabdoid tumour.
Others:
- Clear cell sarcoma.
- Epithelioid gastrointestinal stromal tumour.
- Synovial sarcoma, primitive round cell type.
- Sarcomas in the small round cell tumours group, e.g. Ewing sarcoma.
Note:
- An exhaustive DDx is found in large epithelioid tumours and small round cell tumours.
See also
References
- ↑ Dei Tos AP, Wagner AJ, Modena P, Comandone A, Leyvraz S (August 2009). "Epithelioid soft tissue tumors". Semin. Oncol. 36 (4): 347–57. doi:10.1053/j.seminoncol.2009.06.005. PMID 19664495.