8842/0 Ossifying fibromyxoid tumor


Definitions

Connective, subcutaneous and other soft tissues
ICD-O-3 topography code: C49

A rare soft tissue neoplasm of uncertain lineage characterized by the presence of neoplastic spindle to round cells forming cords in a fibromyxoid stroma. The lesions are associated with the formation of metaplastic bone. Most patients present with painless subcutaneous masses. Recurrences have been reported in a minority of patients.