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WHO Classification of Tumours
Ossifying fibromyxoid tumor
Connective, subcutaneous and other soft tissues


Definition

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.