title: Percutaneous renal biopsies: accuracy, safety, and indications.
abstract: Fifty-one percutaneous renal needle biopsies were performed on 46 patients. Initial biopsy was adequate for diagnosis in 89% of patients. When a second biopsy was performed, this accuracy increased to 98%. Thirty-four of 51 (67%) biopsies were for renal masses and 17 (33%) for medical indications. Computed tomographic guidance was utilized in 94% of cases. Biopsies of renal masses were performed with 18-21-gauge needles, while biopsies for medical indications were performed with an 18-gauge cutting needle or 14-gauge Trucut. A rate of serious complications of 6% was noted.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001707:Biopsy, Needle; D002292:Carcinoma, Renal Cell / Q000473:pathology; D002648:Child; D003560:Cysts / Q000473:pathology; D005260:Female; D006417:Hematuria / Q000209:etiology; D006801:Humans; D007668:Kidney / Q000473:pathology*; D007674:Kidney Diseases / Q000473:pathology*; D007680:Kidney Neoplasms / Q000473:pathology / Q000556:secondary; D008223:Lymphoma / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000209:etiology; D011183:Postoperative Complications; D009396:Wilms Tumor / Q000473:pathology