We present herein the case of an 80-year-old woman with a keratotic plaque measuring 1.4 × 1.3 cm on the left popliteal fossa. The plaque was resected and diagnosed on microscopic examination as low-grade sebaceous carcinoma. Sebaceous carcinoma on the leg seems extremely rare.
From the *Department of Dermatology, Japanese Red Cross Medical Center, Tokyo, Japan; and †Division of Surgical Pathology, Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
Reprints: Sumihisa Imakado, MD, PhD, Department of Dermatology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo 150-8935, Japan (e-mail: firstname.lastname@example.org).