Perianal Abscess Due to Ingested Foreign Body as an Incidental Finding On 18 F-FDG-PET/CT.

George, Noelene; Leskovar, Jane; Miles, Kenneth · Clin Nucl Med · 2025

case_report · Level V

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Abstract

A 46-year-old man underwent FDG-PET/CT for re-staging of malignant melanoma. No metabolically active tumor sites were demonstrated, but intense FDG uptake was seen within the left perianal region associated with a soft tissue opacity on low-dose CT, consistent with an abscess containing a 23 mm linear foreign body. The lesion was subsequently explored surgically. The abscess was drained, and a wooden object measuring ~28 ×2 mm was retrieved. The object was consistent with a portion of the stick from a corn dog which the patient recalled eating some time before the restaging PET.

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