Figure 3d.

Dermal and deep dermatofibrosarcoma protuberans in two patients. (a–c) Dermatofibrosarcoma protuberans in a 61-year-old woman with a painful, rapidly enlarging mass on her anterior abdominal wall. (a, b) Axial (a) and sagittal (b) contrast-enhanced CT images show a well-circumscribed multinodular soft-tissue–attenuation mass extending from the skin surface into the subcutaneous fat (arrows), without involvement of the anterior abdominal wall musculature. (c) Photograph of the resected specimen shows the dermal mass protruding from the skin, with central ulceration (arrow) at the skin surface. (Scale is in centimeters.) (d) Dermatofibrosarcoma protuberans in a 40-year-old man with a painful right lower chest wall mass: Axial contrast-enhanced CT image shows a heterogeneous subcutaneous mass inseparable from the anterolateral abdominal wall musculature (arrows).