Vascular - hemangioma, AVM, lymphangioma, glomus
Neurogenic - NF, schwannoma
Muscular - leiomyoma
Fibroblastic - desmoid tumour, fibromatosis
Fat - Lipoma
Cyst - Simple cyst
Synovium - PVNS / synovial chondromatosis
Bone - MO
Other - FB
Malignancy - sarcoma