Urinary-Tract Lesions of Schistosoma haematobium with Detailed Radiographic Consideration of the Ureter.

摘要

Urography was performed on 153 patients with urinary schistosomiasis. All urograms were abnormal. The most frequent finding (116 of 128 examinations) was postvoiding retention of urine; 93 patients had obstruction. Ureteral stenosis, ureterolithiasis, and bladder calcification were significantly associated with obstruction (p < 0.05). Analysis of the right and left upper and lower ureteral segments revealed that calcification and stenosis occurred primarily in the left lower segment. The occurrence and mean dilatation of ureterectasis were similar in all segments. A distribution of lesions by age indicated that polypoid lesions progressed to fibrotic calcified lesions, with an associated decrease in egg output. (Author)