title: Unexpected atypical findings on CT after radiofrequency ablation for small renal-cell carcinoma and the role of percutaneous biopsy.
abstract: Radiofrequency ablation is a safe and effective treatment for small renal-cell carcinoma (RCC) in selected patients. After ablation, computed tomography or magnetic resonance imaging is used to confirm complete eradication or the presence of residual unablated tumor. The characteristic findings associated with these imaging techniques have been described previously. When the appearance of the ablated tumor deviates from expected findings, percutaneous biopsy is necessary to further evaluate the ablation zone. The present report describes three patients whose atypical findings after ablation of small RCC prompted percutaneous biopsy.
authors.affiliation: Department of Interventional Radiology, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Box 325, Houston, Texas 77030, USA.
authors.forename: Sanaz
authors.initials: S
authors.lastname: Javadi
authors.forename: Surena F
authors.initials: SF
authors.lastname: Matin
authors.forename: Pheroze
authors.initials: P
authors.lastname: Tamboli
authors.forename: Kamran
authors.initials: K
authors.lastname: Ahrar
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D002292:Carcinoma, Renal Cell / Q000175:diagnosis* / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000517:prevention & control; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome