Medical imaging usually shows a well-defined wide-based bony growth on the surface of bone. Differential diagnosis<unk>  is distinct from subungal exostosis. Conditions that may appear similar to<unk>  include: myositis ossficans, ostechondroma, surface osteosarcoma and granulomatous infection.
Bizarre parosteal osteochondromatous proliferation
Palisaded encapsulated neuroma
Terminal osseous dysplasia with pigmentary defects
Progressive osseous heteroplasia
Proliferating epidermoid cyst
Malignant chondroid syringoma
Intradermal spindle cell lipoma
Acral myxoinflammatory fibroblastic sarcoma