Pathology: fibroblastic and myofibroblastic tumours
Benign
Proliferative fasciitis and proliferative myositis
Myositis ossificans and fibro-osseous pseudotumour of digits
Calcifying aponeurotic fibroma
EWSR1::SMAD3 - positive fibroblastic tumour
Intermediate (locally aggressive)
Intermediate (rarely metastasizing)
Dermatofibrosarcoma protuberans
Inflammatory myofibroblastic tumour
Superficial CD34-positive fibroblastic tumour
Myxoinflammatory fibroblastic sarcoma
Malignant
Sclerosing epithelioid fibrosarcoma
Pending consideration as a distinct entity
Acral FibroChondroMyxoid Tumour (emerging)
Plexiform myofibroblastoma (emerging)
PRRX1-rearranged fibroblastic tumour (emerging)