title: Food residue granuloma mimicking metastatic disease on FDG-PET/CT.
abstract: A 31-year-old woman presenting with acute abdomen underwent an emergency Hartmann's procedure for fecal peritonitis due to perforated adenocarcinoma of the left colon. Shortly after a 7-month course of adjuvant chemotherapy, follow-up contrast-enhanced CT showed multiple peritoneal and hepatic nodules, showing focal intense and homogeneous FDG uptake on FDG-PET/CT, highly suspected for recurrence of disease. Excisional biopsy of the nodules revealed foreign body granulomas made up of alimentary materials surrounded by a fibrous wall. We report a unique case of a false-positive finding secondary to food residues mimicking metastatic disease on FDG-PET in a patient with colon cancer.
authors: Department of Surgery, Catholic University of the Sacred Heart, Policlinico "A. Gemelli", Largo A. Gemelli 8, 00168 Rome, Italy.
authors: Antonio
authors: A
authors: Crucitti
authors: Ugo
authors: U
authors: Grossi
authors: Lucia
authors: L
authors: Leccisotti
authors: Fabio
authors: F
authors: Maggi
authors: Riccardo
authors: R
authors: Ricci
authors: Andrea
authors: A
authors: Mazzari
authors: Pasquina M C
authors: PM
authors: Tomaiuolo
authors: Alessandro
authors: A
authors: Giordano
mesh_terms: D000328:Adult; D003110:Colonic Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D019788:Fluorodeoxyglucose F18; D005502:Food; D015745:Granuloma, Foreign-Body / Q000175:diagnosis*; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D049268:Positron-Emission Tomography / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D019788:Fluorodeoxyglucose F18
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