An Incidental Uptake of 18F-Choline at PET/CT in Gastric Neuroendocrine Tumor.

We present a case of neuroendocrine tumor localized in the gastric mucosa, incidentally detected by F-choline PET/CT in a 69-year-old man with prostate cancer. F-choline PET/CT scan showed an increased activity in the stomach, later diagnosed as a well-differentiated neuroendocrine tumor, at biopsy. A careful attention of reading F-choline PET/CT images should be made, in order to avoid the missing of potential concomitant neoplasia in patients with prostate cancer.