Difference between revisions of "Epithelioid cell lesions"
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'''Epithelioid cell lesions''' are very common in pathology. Malignant epithelioid lesions are | [[Image:Epithelioid sarcoma - cropped - very high mag.jpg|thumb|right|250px|An tumour with an epithelioid morphology ([[epithelioid sarcoma]]). [[H&E stain]].]] | ||
'''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== | ||
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*[[Basics]]. | *[[Basics]]. | ||
*[[Pleomorphic tumours]]. | *[[Pleomorphic tumours]]. | ||
*[[Large epithelioid tumours]]. | |||
==References== | ==References== | ||
{{Reflist| | {{Reflist|1}} | ||
[[Category:Basics]] | [[Category:Basics]] | ||
Latest revision as of 06:55, 1 November 2014
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.