2024 Volume 39 Issue 2 Pages 180-185
A 74-year male presented with a small raised lesion in the right perianal area. The lesion was pea-sized, skin-colored, and raised with slightly soft elasticity and good mobility at first observation. A biopsy was performed under the suspicion of atheroma and dermatofibroma. Pathological examination revealed basal cell carcinoma (BCC). At the initial examination, the lesion could not be suspected as malignant skin tumor clinically because of the tumor’s appearance and location. This rare case of BCC is thus presented here in addition to a review of BCC occurring on the perianal area.[Skin Cancer (Japan) 2024 ; 39 : 180-185]