Light microscopy of<unk> <unk><unk> . Light microscopy of an<unk> <unk><unk>  biopsy typically shows granular appearance. Immunohistochemistry is usually positive for trypsin, chymotrypsin and lipase. On genetic testing, altered genes/proteins are typically found for p53, SMAD4, APC, ARID1A and GNAS.
Acinar cell carcinoma of the pancreas
Pancreatic neuroendocrine tumor
Pancreatic serous cystadenoma
Pancreatic mucinous cystic neoplasm
Periampullary cancer
Pancreatic mucinous cystadenoma
Pancreatoblastoma
Hepatoid tumor