title: Ultrasound-guided percutaneous ablation of a renal mass in a renal allograft.
abstract: A 50-year-old man underwent magnetic resonance imaging and was found to have an incidental 3.2-cm mass in a renal allograft. Because of the multiple comorbidities associated with renal allograft patients, a minimally invasive option such as percutaneous ablation should be considered. The patient underwent percutaneous ultrasound-guided cryoablation. The final histopathologic examination of the needle biopsy was consistent with an oncocytic neoplasm. The 9-month follow-up contrast-enhanced magnetic resonance imaging scan showed no residual tumor. Long-term follow-up and greater clinical experience are still necessary to confirm the efficacy of cryoablation for allograft lesions.
authors.affiliation: Department of Urology, Columbia University Medical Center, New York, New York 10032, USA.
authors.forename: Gregory W
authors.initials: GW
authors.lastname: Hruby
authors.forename: Joshua K
authors.initials: JK
authors.lastname: Fine
authors.forename: Jaime
authors.initials: J
authors.lastname: Landman
mesh_terms: D018249:Adenoma, Oxyphilic / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D003452:Cryosurgery / Q000379:methods*; D006801:Humans; D033162:Incidental Findings; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D016030:Kidney Transplantation / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014184:Transplantation, Homologous / Q000473:pathology*; D018084:Ultrasonography, Interventional