Two cases of multiple basal cell carcinoma

Multiple basal cell carcinoma (mBCC) is a rare skin condition, and the propensity to develop mBCC may be associated with some genodermatoses, arsenic poisoning, and chronic exposure to radiation or coal tar. We experienced two rare and interesting cases of mBCC. One case was a 67-year-old woman, who presented with a twenty year history of numerous, black to brownish crusted patches over the whole body. Histopathologic features of the lesions indicated superficial basal cell carcinoma. The other case was a 70-year-old woman, who had multiple, black to brown colored papules on the face, neck and trunk. Biopsy specimens from lesions revealed histopathologic features of superficial, micronodular and morpheaform basal cell carcinoma.