Extensive pelvic malacoplakia: observations on management.

A case of malacoplakia of the bladder is described. During a 4-year interval the disease progressed from a small intravesical lesion to a large pelvic mass. The disease eventually was controlled by carefully supervised antibiotic treatment of the recurrent urinary tract infections. Patients with urinary malacoplakia require careful long-term followup to control urinary tract infections and help prevent the occasionally aggressive course of this disease.