Photo Quiz: A Pedunculated Mass on the Thigh

The physical examination revealed a well-defined, dome-shaped, corrugated, skin-colored, pedunculated mass on the right medial thigh (Figure 1, Figure 2, and Figure 3). Typically, they present as soft, skin-colored, mobile nodules. Because the lesions are subcutaneous, they are not pedunculated.3 Neurofibromas are benign tumors of the peripheral nerve sheath and may present as multiple or solitary lesions. Summary Table Condition Characteristics Acrochordon Benign skin tumor, usually less than 1 cm in diameter; multiple, skin-colored to brown, pedunculated papillomas in the intertriginous areas, such as the neck, axillae, and inguinal areas Lipoma Benign subcutaneous tumor; solitary or multiple; soft, skin-colored, mobile nodules Neurofibroma Benign tumor of the peripheral nerve sheath; asymptomatic, polypoid, slow-growing, soft, rubbery, pink to skin-colored papules or nodules; invaginate with pressure (buttonhole sign) Nevus lipomatosus cutaneus superficialis Benign connective tissue nevus characterized by ectopic fatty tissue in the dermis; solitary or multiple; solitary form presents as dome-shaped, slow-growing, pedunculated mass Address correspondence to Hei Sung Kim, MD, PhD, at hazelkimhoho@gmail.com.