A 31-year-old man comes to his physician because of a bump on the skin of the lower abdomen that has enlarged over the past 4 years and has become more painful in the past week. On physical examination, there is a subcutaneous, movable, soft nodule at the belt line anteriorly that elicits pain with pressure. The overlying skin is intact. The patient states that the nodule began hurting about 1 day after he vigorously squeezed it. The lesion is excised and does not recur. Which of the following is the most likely diagnosis of this lesion?
□ (A) Acne vulgaris
□ (B) Epidermal inclusion cyst
□ (C) Fibroepithelial polyp
□ (D) Intradermal nevus
□ (E) Trichoepithelioma
□ (F) Xanthoma
