Chronic papillomatous dermatitis as a peristomal complication in conduit urinary diversion.

In 76 patients with conduit urinary diversion, the skin in the stomal area was studied with regard to complications. No such complications had occurred in 39 cases. Superficial erosive dermatitis was present or had been a transient episode in 27 cases. The immediate peristomal area was found in ten cases to show a different type of complication. This was characterized by hyperplastic, papillomatous skin lesions of a chronic nature. A rubber urinary collecting device for long-term use had been fitted in nine of the ten patients, and none of them had a protruding nipple stoma. The clinical, microbiologic and histologic features of these hyperplastic lesions are described and aetiologic factors are discussed. Change to another type of collecting device was followed within three to six weeks by healing of the lesions.