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Food residue granuloma mimicking metastatic disease on FDG-PET/CT

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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.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Surgery, Catholic University of the Sacred Heart, Policlinico “A. Gemelli”, Largo A. Gemelli 8, 00168, Rome, Italy

    Antonio Crucitti, Ugo Grossi, Andrea Mazzari & Pasquina M. C. Tomaiuolo

  2. Department of Bioimaging and Radiological Sciences, Catholic University of the Sacred Heart, Policlinico “A. Gemelli”, Largo A. Gemelli 8, 00168, Rome, Italy

    Lucia Leccisotti, Fabio Maggi & Alessandro Giordano

  3. Department of Pathology, Catholic University of the Sacred Heart, Policlinico “A. Gemelli”, Largo A. Gemelli 8, 00168, Rome, Italy

    Riccardo Ricci

Authors
  1. Antonio Crucitti
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  2. Ugo Grossi
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  3. Lucia Leccisotti
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  4. Fabio Maggi
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  5. Riccardo Ricci
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  6. Andrea Mazzari
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  7. Pasquina M. C. Tomaiuolo
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  8. Alessandro Giordano
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Corresponding author

Correspondence to Ugo Grossi.

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Crucitti, A., Grossi, U., Leccisotti, L. et al. Food residue granuloma mimicking metastatic disease on FDG-PET/CT. Jpn J Radiol 31, 349–351 (2013). https://doi.org/10.1007/s11604-013-0184-x

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  • DOI: https://doi.org/10.1007/s11604-013-0184-x

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