Interdigital fibromas belong to which category of lesions?

• A. Benign soft tissue tumor
• B. Malignant bone tumor
• C. Vascular malformation
• D. Inflammatory arthropathy

Answer: (A)

Interdigital fibromas are benign soft tissue tumors. A fibroma is a non-cancerous growth made of fibrous connective tissue, arising in the soft tissues between digits. Because the lesion is a non-malignant proliferation confined to soft tissue rather than involving bone, it fits best as a benign soft tissue tumor. It is not a malignant bone tumor, not a vascular malformation (which involves abnormal blood vessels), and not an inflammatory arthropathy (which affects joints with inflammatory processes rather than presenting as a discrete interdigital fibrous mass).