A Case of Epidermoid Cyst of Distal Phalanx of the Right Thumb

Abstract

In this study, we report a rare case of epidermoid cyst caused by trauma arising in the distal phalanx. A 40-year-old man complained of swelling and pain in the distal phalanx of the right thumb. We performed resection of the tumor, and found atheroma in the distal phalanx. The case was diagnosed as epidermoid cyst based on histological results. No recurrence was seen for five months after surgery.