title: Angiomyolipoma of the renal sinus: diagnosis by percutaneous biopsy.
abstract: We report a case of angiomyolipoma of the renal sinus discovered incidentally during an evaluation for microscopic hematuria. Diagnosis was confirmed by percutaneous aspiration biopsy performed with magnetic resonance imaging control allowing differentiation of this entity from other fatty tumors of the renal sinus including liposarcoma, lipoma, and sinus lipomatosis.
authors.affiliation: Department of Surgery, The Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Metro
authors.forename: P
authors.initials: P
authors.lastname: Ramchandani
authors.forename: M P
authors.initials: MP
authors.lastname: Banner
authors.forename: E S
authors.initials: ES
authors.lastname: Siegelman
authors.forename: A H
authors.initials: AH
authors.lastname: Stolpen
authors.forename: A J
authors.initials: AJ
authors.lastname: Wein
authors.forename: E S
authors.initials: ES
authors.lastname: Rovner
mesh_terms: D018207:Angiomyolipoma / Q000150:complications / Q000175:diagnosis*; D001707:Biopsy, Needle; D005260:Female; D019786:Gadolinium DTPA; D006417:Hematuria / Q000209:etiology; D006801:Humans; D007089:Image Enhancement; D007680:Kidney Neoplasms / Q000150:complications / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged
chemical_list: D019786:Gadolinium DTPA