A 40-year-old man presented with abdominal pain and diarrhea for 2 months. Abdominal CT showed thickening of the cecal wall, which was considered likely malignant. The patient was subsequently enrolled in a clinical trial of 68Ga-FAPI PET/CT study in tumors. Intense 68Ga-FAPI activity was noted in the thickened cecum, also suggestive of malignancy. However, pathological examination from biopsy rendered a diagnosis of chronic colitis.
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