2021 Volume 36 Issue 1 Pages 33-37
A 76-year-old woman presented with a red nodule arising from the surgical scar on her upper abdomen ; the scar was from a Caesarean section 51 years earlier. On examination, there was a red plaque, 2.5 cm in diameter, with exudate adjacent to the lower edge of the fistula. Black pigmentation and a 1-cm red nodule were seen over the plaque. The histological diagnosis was basal cell carcinoma (BCC). Magnetic resonance imaging showed that the lower edge of the fistula was below the line alba. The tumor and surrounding peritoneal adipose tissue were successfully removed under general anesthesia. Histological examination revealed the origin of the tumor cells from the normal epithelium of the fistula wall. BCC arising from a fistula of a surgical scar is extremely rare.[Skin Cancer (Japan) 2021 ; 36 : 33-37]
