ossifying fibromyxoid tumor (MONDO_0006330) is a rare soft tissue tumor 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. Also known as: OFMT, ossifying fibromyxoid neoplasm, ossifying fibromyxoid tumor (morphologic abnormality), ossifying fibromyxoid tumour (morphologic abnormality), ossifying fibromyxoma.