central nervous system mesenchymal non-meningothelial tumor +
cerebrotendinous xanthomatosis
CLOVES syndrome
congenital epulis
Desmoid-type fibromatosis +
encephalocraniocutaneous lipomatosis
familial angiolipomatosis
familial multiple lipomatosis
fibrodysplasia ossificans progressiva
fibroma +
fibromatosis +
fibromyxoid tumor +
fibrosarcoma +
FLOTCH syndrome
glomus tumor +
hemangioma of subcutaneous tissue
inflammatory myofibroblastic tumor +
isolated anhidrosis with normal sweat glands
juvenile hyaline fibromatosis
kaposiform hemangioendothelioma
Lipedema
malignant soft tissue neoplasm +
Mazabraud syndrome
mediastinal mesenchymal tumor +
mixed endometrial stromal and smooth muscle tumor +
multiple symmetric lipomatosis
myofibroblastoma +
nodular fasciitis
A self-limiting, rapidly growing, non-encapsulated benign neoplasm that arises from the soft tissues. It is characterized by the presence of plump spindle-shaped fibroblasts, multinucleated osteoclast-like giant cells, chronic inflammatory infiltrate, red blood cell extravasation, and high mitotic activity.