title: Malacoplakia of the ureter.
abstract: Malacoplakia of the urinary tract affects primarily the bladder and secondarily the distal ureter. Characteristic gross and microscopic lesions have been well described. A case of malacoplakia is reported in a 55-year-old woman who presented with hydronephrosis in a solitary kidney. The only lesion in the urinary tract was an apple-core type mass of the distal ureter, which was resected. This represents a rare and unusual presentation of malacoplakia. The differential diagnosis and pertinent literature are discussed.
mesh_terms: D005260:Female; D006801:Humans; D008287:Malacoplakia / Q000175:diagnosis*; D008875:Middle Aged; D014515:Ureteral Diseases / Q000175:diagnosis*