Abstract

Two cases with squamous cell carcinoma (SCC) occured on the hand induced by the occupational exposure to ionizing radiation were reported. The patients were a 57-years-old osteopathic physician and a 66-years-old dentist presented with ulcerated skin tumors on fingers. Both patients had primary tumors extending to the bone and later developed lung metastasis. Although the incidence of radiationindueced SCC are decreasing in Japan, the patients who recieved occupational radiation exposure should be followed-up carefully.