title: Indolent enterococcal abscess mimicking recurrent renal cell carcinoma on MR imaging and PET/CT after radiofrequency ablation.
abstract: A case of asymptomatic enterococcal abscess was found to mimic recurrent renal cell carcinoma (RCC) on gadolinium-enhanced magnetic resonance (MR) imaging and positron emission tomography/computed tomography (CT) 15 months after radiofrequency ablation for RCC. This case illustrates that indolent infection can closely mimic recurrent neoplasm on imaging. The authors suggest that if bacterial and fungal cultures had been performed during the CT-guided biopsy, the subsequent open surgical procedure might have been avoided.
authors.affiliation: Department of Diagnostic Radiology, Mayo Clinic Scottsdale, 13400 East Shea Boulevard, Scottsdale, Arizona 85259, USA. roarke.michael@mayo.edu
authors.forename: Michael C
authors.initials: MC
authors.lastname: Roarke
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Collins
authors.forename: Ba D
authors.initials: BD
authors.lastname: Nguyen
mesh_terms: D000038:Abscess / Q000382:microbiology*; D000193:Actinomycetales Infections / Q000175:diagnosis*; D000368:Aged; D001707:Biopsy, Needle; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D017115:Catheter Ablation / Q000009:adverse effects*; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008837:Micrococcus; D049268:Positron-Emission Tomography; D012008:Recurrence; D014057:Tomography, X-Ray Computed