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myomelanocytic tumor

Monday 15 December 2003

clear cell myomelanocytic tumor

Definition : The clear cell myomelanocytic tumor (CCMMT) is a recently reported and very rare member of the perivascular epithelioid cell family of tumors (PEComa ).

Localization

- falciform ligament/ligamentum teres
- bladder (vesical clear cell myomelanocytic tumor)
- thigh (12023589)

Immunohistochemistry

- smooth muscle actin+ (SMA+ )
- HMB-45+
- microphthalmia transcription factor+ (MITF+ )

See also

- clear cell tumors