title: Six years of experience with retrograde biopsy of intraureteral carcinoma using the Dormia stone basket.
abstract: To confirm the cause of a small defect of the ureter and to determine preoperatively the histological grade of ureteral carcinoma a new technique of intraureteral biopsy was attempted with a Dormia stone basket. Of 8 biopsies performed on 7 patients with ureteral or pelvioureteral carcinoma only 1 failed to produce a fragment of tissue. Histological diagnosis was made in each of the 7 patients and histological grading in 5. Four patients with non-malignant defects of the lower ureter also were biopsied with this technique to ascertain the feasibility of this biopsy on minimal filling defects. In each patient a tiny piece of tissue was removed. Histological diagnosis could be made in 3 cases.
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy / Q000295:instrumentation / Q000379:methods*; D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D014513:Ureter / Q000473:pathology*; D014516:Ureteral Neoplasms / Q000473:pathology*