9252/3 Malignant tenosynovial giant cell tumor
SynonymsGiant cell tumor of tendon sheath, malignant
|Connective, subcutaneous and other soft tissues|
|ICD-O-3 topography code:||C49|
An uncommon malignant tumor arising from the tendon sheath. Morphologically, it is characterized by the presence of a cellular infiltrate reminiscent of a giant cell tumor with prominent malignant characteristics. Recurrent giant cell tumors with a sarcomatous dedifferentiation are included in this category as well.