[Spinocellular carcinoma as a rare complication in pilonidal cyst].

The authors present two cases where on the basis of the pilonidal sinus spinocellular carcinoma developed. Both patients were successfully operated. The first one has been for three years, the second one for eight months without relapse. From the paper ensues that cancerization of the pilonidal sinus must be considered a very serious complication and must be prevented by early surgery.