Which property, if present, justifies removal of an interdigital fibroma?

• A. Non-ulcerated
• B. Asymptomatic
• C. Benign appearance
• D. Ulcerated

Answer: (D)

Ulceration signals a raised risk of complications and potential malignant change in a soft tissue lesion, so removal is warranted to obtain a definitive diagnosis and prevent infection or further tissue damage. Interdigital fibromas are usually benign and may be managed conservatively if they are non-ulcerated and asymptomatic, but an ulcerated surface indicates skin involvement and a need for excisional biopsy to rule out malignancy and treat the lesion.