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Difference between revisions of "Soft tissue lesions"
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→Fibroblastic/myofibroblastic tumours: +UPS
(→Molecular testing: +patterns) |
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| Line 97: | Line 97: | ||
*[[Necrosis]]. | *[[Necrosis]]. | ||
*Mitoses. | *Mitoses. | ||
=Fibrohistiocytic tumours= | |||
==Undifferentiated pleomorphic sarcoma== | |||
*Abbreviated ''UPS''. | |||
*Previously known as ''malignant fibrous histiocytoma''. | |||
===General=== | |||
*Common sarcoma. | |||
===Microscopic=== | |||
Features: | |||
*Storiform pattern ([[AKA]] patternless pattern. | |||
*Marked nuclear pleomorphism. | |||
**Variation is nuclear size, nuclear shape and nuclear staining (esp. hyperchromasia). | |||
*Mitotically active. | |||
=Fibroblastic/myofibroblastic tumours= | =Fibroblastic/myofibroblastic tumours= | ||