Seven cases of primary @entity5 treated at Nagaoka Koseiren Chuo General Hospital in 1983 were reviewed retrospectively. The incidence of primary @entity5 among the out- @entity1 in the urologic clinic of the hospital was 0.22% and the incidence among the in- @entity1 was 1.65%. The @entity1 's age ranged from 45 to 83 years (average: 59.14 years old). The ratio of male to female was 2.5: 1.0. The left ureter and the lower third of the ureter were involved more frequently than the others. The most common symptom was colicky @entity812 (57% of the cases), which was followed by macroscopic @entity811 . On IVP, 5 of the 7 cases showed a @entity8 or @entity3041 , but the others showed filling defects in the ureteral lumen without @entity3041 . Diagnostic accuracy of CT was 14.3%. Diagnostic accuracy of urine cytology was 42.9% and the false negative rate was the same. Six of the 7 cases underwent total nephroureterectomy with bladder cuff excision. The higher the grade and stage of the @entity5 , the poorer the prognosis tended to be.

[A clinical survey of 7 cases with primary XXXX : experiences in a year].

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity8 :: ('MESH:D007674', 'Disease') :: ['non-functioning kidney'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'ureteral tumors'] @entity812 :: ('MESH:D021501', 'Disease') :: ['flank pain'] @entity3041 :: ('MESH:D006869', 'Disease') :: ['hydronephrosis'] @entity811 :: ('MESH:D006417', 'Disease') :: ['hematuria']
@entity5 :: (MESH:D009369,Disease) :: ['ureteral tumor']
