PRIMARY epithelial tumour of the ureter is a comparatively rare condition. Cases correctly diagnosed before operation are, however, being reported at such an increasing rate, due to appreciation of this entity and improved diagnostic technique, that this condition is by no means the usually fortuitously found curiosity of twenty years ago.
REPORTS OF CASESCase 1.-Papilloma of the Ureter.-The patient, a male aged 61 years, had noticed dark hiematuria three weeks previously after riding on horseback. This had recurred two weeks later. FIG. I Case 1. Papilloma. Intravenous pyelogram. FIG. 2 Case 1. Papilloma. Retrograde pyelogram.Nocturia had been present for six months ; his urinary stream had been deteriorating for some time and hesitation occurred at night. For several months he had noticed a discomfort in the right iliac fossa " like wind." Moderate benign enlargement of the prostate was present, and general physical examination showed cardiac decompensation. Microscopic examination of the urine revealed a few red cells and many leucocytes per high power field : there was no growth on culture.At intravenous pyelography two small renal calculi were found on the left side, this pyelogram being otherwise normal. A calyceal type of hydronephrosis was present in the right side, the pelvis being poorly filled and the ureter not being demonstrated (Fig. 1).On cystoscopy, hyperplasia of the lateral lobes of the prostate causing obstruction was seen, 103
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