A well-circumscribed, rounded lesion is found on the dorsal tongue, similar in appearance to a fibroma. In the differential diagnosis, which of the following is LEAST likely?

Correct answer: A. Verruca vulgaris

• A. ✅ Correct (exception). Verruca vulgaris presents as a rough, papillary, warty surface lesion — NOT a well-rounded, smooth, well-defined mass. It is LEAST consistent with the smooth, rounded tongue lesion described.
• B. ❌ Granular cell tumor (Abrikossoff tumor) is one of the MOST common benign tumors of the tongue — it IS in the differential.
• C. ❌ Schwannoma is a well-rounded encapsulated lesion that commonly occurs on the tongue — it IS in the differential.
• D. ❌ Fibroma is the most common benign oral soft tissue tumor — always in the differential.