This document summarizes 4 medical cases: 1) A neuroendictumor, 2) Left upper lobe atresia, 3) A main duct intraductal papillary mucinous tumor (IPMT) in the pancreatic body/tail seen in middle-aged patients of both sexes, appearing T1-hypointense and T2-hyperintense with a T2-hypointense papillary mural nodule within the dilated duct. 4) Liver malignant lymphoma.