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A 71-year-old asymptomatic man underwent PET/CT as part of routine post-operative surveillance after gastric cancer resection was performed 2.5 years previously. Axial PET and PET/CT fusion images (arrows, A and B) showed no focal hypermetabolic activity in the abdominal wall. Axial contrast CT (white arrow, C) demonstrated local thickness in the abdominal wall. This was later verified as malignant by histopathological assessment of a CT guided core tissue biopsy (D).
