Which description correctly defines interdigital fibroma?

• A. A malignant bone tumor
• B. A fibrous tissue growth between digits
• C. A vascular malformation
• D. A degenerative joint disease

Answer: (B)

Interdigital fibroma is a benign fibrous tissue proliferation that grows in the soft tissues between the digits. The defining feature is its location between the toes and its composition as fibrous connective tissue, which is why it’s described as a fibrous tissue growth between digits. It is not a bone tumor, so it wouldn’t be described as malignant bone disease. It isn’t a vascular malformation, since there isn’t abnormal blood vessel development, and it isn’t a degenerative joint disease, which involves joint structures rather than an interdigital soft-tissue mass. This description precisely captures both the tissue type (fibrous) and the location (between digits), making it the best fit.