title: 18F-FDG PET/CT findings of a right subphrenic foreign-body granuloma.
abstract: We report a case of an 85-year-old woman with a foreign-body granuloma which accumulated 18F-fluorodeoxyglucose (FDG). Unenhanced computed tomography showed a hyperdense mass with a hypodense rim in the right subphrenic space. FDG PET/CT images showed intense FDG uptake in the hypodense rim and little FDG uptake in the center of the mass, showing a ring-shaped appearance. The fusion imaging of FDG PET/CT represented the metabolic features of the foreign-body granuloma. When a ring-shaped FDG uptake is noted in the abdomen of a patient with a history of abdominal surgery, a foreign-body granuloma should be included in the differential diagnosis.
authors.affiliation: Atsuchi Memorial Clinic PET Center, Kagoshima, Japan. toyo.nakajo@dolphin.ocn.ne.jp
authors.forename: Masatoyo
authors.initials: M
authors.lastname: Nakajo
authors.forename: Seishi
authors.initials: S
authors.lastname: Jinnouchi
authors.forename: Rie
authors.initials: R
authors.lastname: Tateno
authors.forename: Masayuki
authors.initials: M
authors.lastname: Nakajo
mesh_terms: D000005:Abdomen / Q000473:pathology; D000369:Aged, 80 and over; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D019788:Fluorodeoxyglucose F18; D005547:Foreign Bodies / Q000175:diagnosis*; D015745:Granuloma, Foreign-Body / Q000175:diagnosis* / Q000473:pathology*; D006801:Humans; D049268:Positron-Emission Tomography / Q000379:methods*; D011183:Postoperative Complications; D015503:Surgical Sponges; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D019788:Fluorodeoxyglucose F18