[A case of pyeloureteritis cystica: a diagnosis to keep in mind].

The diagnosis of pyeloureteritis cystica is rare. Data from the literature about this disease are limited. Pyeloureteritis cystica is described as a benign inflammatory disease of the urinary tract, resulting from chronic inflammation of the urothelium. Radiologically, it is characterized by multiple rounded incomplete images of the urinary tract. The histology can confirm the diagnosis or eliminate differential diagnosis. We report the case of a pyeloureteritis cystica in a 64-year-old man, who had a chronic haematuria since ten years.