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- 2019
Intrapancreatic accessory spleen mimicking malignant tumor: three case reportsKeywords: Accessory spleen, pancreatic neuroendocrine tumor, renal cell cancer, Ga-68-Dotatoc, positron emission tomography, Tc-99m-pertechnetate SPECT Abstract: Intrapancreatic hypervascular lesions may represent metastases, neuroendocrine tumors, or intrapancreatic accessory spleens. The benign intrapancreatic accessory spleen can be difficult to separate from a malignant neuroendocrine tumor or metastasis. We report three cases of pancreatic lesions that underwent pancreatic surgery due to suspicion of malignancy on imaging; all cases were histologically intrapancreatic accessory spleens. Our cases point to the importance of performing single-photon emission computed tomography with heat-damaged Tc-99m-pertechnetate labelled erythrocytes to identify splenic tissue, even though small lesions can show a false-negative result
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