Oval Brown Plaque on the Palm

Abstract

A 43-year-old woman presented with a painful lesion on the palm of 30 years' duration that had grown in size. Physical examination revealed an oval, brown, lobulated plaque with a hyperkeratotic rim on the left palm. She reported bleeding and pain. A shallow cup-shaped depression was noted within the plaque. A 4-mm punch biopsy was performed. WHAT'S YOUR DIAGNOSIS?a. basal cell carcinoma b. circumscribed acral hypokeratosis c. Kaposi sarcoma d. poroma e. pyogenic granuloma Eligible for 1 MOC SA Credit From the ABD This Photo Challenge in our print edition is eligible for 1 self-assessment credit for Maintenance of Certification from the American Board of Dermatology (ABD). After completing this activity, diplomates can visit the ABD website (http://www.abderm.org) to self-report the credits under the activity title "Cutis Photo Challenge." You may report the credit after each activity is completed or after accumulating multiple credits.