1994 年 9 巻 2 号 p. 132-135
We have presented a case of clear cell BCC that was first reported by Barr & Graham in 1979. The patient was a 75-year-old female, and the chief complaint was a tumor appearing on the right posterior head skin. Routine histological examination revealed typical BCC with a small amount of clear cells. On histochemistry, clear cells showed PAS (+), d-pas (-), and Alb (-) . These histological staining patterns were similar to those reported by Barnadas MA & Freeman RG in 1988. Immunohistochemistry with a panel of monoclonal antibodies against cytokeratins revearled that most tumor cells in our case showed similar staining patterns to those in typical BCC. However, the staining intensity was decreased in clear cells, which may have been caused by some degeneration of tumor cells.