女60

胰腺体尾部肿块5*5厘米，囊实性，部分地区钙化，质松脆

 Low grade tumor cells with trabacular and rossette architecture, favor neuroendocrine tumor. IHC synaptophysin and chromogranin  to confirm.  Neuroendocrine tumors are likely to occur in pancreatic tail.  Defferention between benign, atypical and malignant neuroendocrine tumor depends on mitotic figures and necrosis.  Solid peudopapillary tumor usually occurs in young women, usually not in 60 years old.