Computed Tomography Findings Of Pancreatic Peripheral Primitive Neurectodermal Tumor In An Elderly Man: A Case Report

Peripheral primitive neurectodermal tumors (pPNETs) with pancreatic origins are extremely rare. This study reported a case of pancreatic pPNET in a 64-year-old man. Plain abdominal computed tomography (CT) identified a large, round-like, poorly defined solid mass with a large hypointense area in the pancreatic tail. Contrast-enhanced CT revealed that the tumor parenchyma had medium heterogeneous contrast enhancement with a large non-enhanced area of cystic degeneration and necrosis during pancreatic substance phase and progressive contrast enhancement during portal phase. The tumor infiltrated the splenic artery and vein. Patient's advanced age complicates the preoperative diagnosis of this malignancy. Therefore, we proposed that pPNET should be considered in the differential diagnosis of masses arising in the pancreas, particularly in those with wide local invasion.