Primary solid pancreatic tumors: recent imaging findings updates with pathology correlation

摘要: The imaging findings of primary solid pancreatic tumors have long been studied and are generally well-established. However, interestingly enough, a wealth new information has recently appeared in the literature, including novel or previously seldom-addressed pathological entities as well atypical common tumors, both which well-correlated with pathology findings. 5 %–14 % ductal adenocarcinomas reported on dynamic contrast-enhanced computed tomography to be isoattenuating, thus making diagnosis challenging. imaging-pathology correlation such isoattenuating is presented along discussion regarding early detection cancers. Colloid (or mucinous non-cystic) cancer may resemble less harmful cystic lesion due its abundant extracellular mucin, requiring caution image interpretation. Serotonin-producing neuroendocrine recognized separate entity from usual tumors. Exuberant fibrosis caused by serotonin metabolites scarce tumor cells creates unique pattern obstruction seen imaging. Small pseudopapillary appear unencapsulated, completely lesions gradually increasing enhancement after contrast administration, unlike typical neoplasms that present large mixed degenerated hemorrhagic mass encapsulated thick capsule which, therefore, tend misdiagnosed Solid serous adenoma rare, variant cystadenoma appears hypervascular, nodule genuinely microscopic cystic, alveolar, ectatic tubular architecture.