Abstract
A thirty-years-old man was admitted to our hospital in Dec. 1975 with a chief complaint of pain in the distal end of the right middle finger.
One month before admission, he first noted tenderness of increasing severity in the finger.
Past history revealed that in 1974 the patient had experienced the operation for the paronychia of this finger.
Roentgenograms made at the time of admission revealed an osteolytic lesion in the distal phalanx of the right middle finger with marked thinning of the cortex.
The operation was performed with curettage and filling of the defect with bone grafts.
The pathological diagnosis was epidermoid cyst.
