2014 Volume 67 Issue 3 Pages 183-187
A 57-year-old female visited our hospital with a perianal rash. A papillary, irregular mass was observed in the perianal skin. A biopsy was performed and a preoperative diagnosis of intraepidermal squamous-cell carcinoma (Bowen's disease) was made. Local excision, construction of a skin flap and colostomy were performed. A histological examination revealed invasion of cancer cells to the dermis, and the final diagnosis was Bowen's carcinoma (invasive squamous cell carcinoma). A wound infection developed after surgery. The pedicle flap healed following conservative treatment, although the skin graft required reconstruction. Since it is difficult to make an accurate preoperative diagnosis of the invasion depth of Bowen's disease by skin biopsy, an adequate margin should be ensured in case of Bowen's carcinoma when local excision is performed. In addition, it is better to choose a pedicle flap to repair skin defects, because the anal region can easily become infected.
