title: Atypical presentation of xanthogranulomatous pyelonephritis: diagnosis by ultrasonography and fine needle aspiration biopsy.
abstract: The diagnosis of xanthogranulomatous pyelonephritis may be difficult to make preoperatively. We describe a patient who had a nonfunctioning kidney with a normal collecting system on retrograde pyelography as well as normal angiography and venography. Preoperative diagnosis was xanthogranulomatous pyelonephritis by fine needle aspiration biopsy under ultrasonic guidance.
mesh_terms: D000328:Adult; D000792:Angiography; D001707:Biopsy, Needle; D005260:Female; D006099:Granuloma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007668:Kidney / Q000473:pathology; D010690:Phlebography; D011704:Pyelonephritis / Q000175:diagnosis* / Q000473:pathology; D014463:Ultrasonography; D014567:Urography; D014973:Xanthomatosis / Q000175:diagnosis* / Q000473:pathology