A 59-year-old @entity1 was admitted to our hospital in June 2001 for evaluation of an asymptomatic microscopic @entity811 . One year prior to presentation, he had a spontaneous discharge of a @entity1901 . Excretory urography and retrograde pyelography showed a filling defect in the middle portion of the left ureter. Cystoscopic examination did not reveal any abnormality, and urinary cytology was class I. Cold cup biopsy was performed under ureteroscopy, and pathology revealed inflammatory fibrovascular tissue but with no malignancy. Selective washing cytology was class III, whereas selective washing cytology done at the referring hospital was reported to be class V. Under a preoperative diagnosis of a @entity1127 or a transitional cell @entity189 , @entity1347 was performed. The @entity5 was 5 x 5 x 5 mm in size, pedunculated, and smooth-surfaced. Intraoperative pathological examination of a frozen section showed an @entity1606 . Therefore, a left nephroureterectomy was performed, and the final histopathological examination confirmed an @entity1606 of grade 2. The @entity1 is healthy and free of disease 15 months after operation. We also reviewed the current literature relating to @entity1606 of the ureter with inverted proliferation.

[Transitional cell carcinoma of the ureter with inverted proliferation: a difficult case to make a differential diagnosis with XXXX ].

@entity1 :: ('9606', 'Species') :: ['patient', 'man'] @entity1901 :: ('MESH:D014515', 'Disease') :: ['left ureteral stone'] @entity1127 :: ('MESH:D011127', 'Disease') :: ['left fibroepithelial ureteral polyp'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity1347 :: ('MESH:C537775', 'Disease') :: ['left segmental ureterectomy'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinoma'] @entity1606 :: ('MESH:D002295', 'Disease') :: ['transitional cell carcinomas', 'inverted type transitional cell carcinoma'] @entity811 :: ('MESH:D006417', 'Disease') :: ['hematuria']
@entity1127 :: (MESH:D011127,Disease) :: ['ureteral polyp']
