Favorable response after radiation therapy for intraductal papillary mucinous neoplasms manifesting as acute recurrent pancreatitis: A case report

Figure 1 Pancreas magnetic resonance imaging scan at referral 5 years ago. A: Axial T2-weighted imaging (T2WI) image shows a multilobular tumor in the head of pancreas (arrow head); B: T2WI image shows pancreatic duct dilatation (arrow head); C: Magnetic resonance cholangiopancreatography shows a multilobular tumor (arrow head) and pancreatic duct dilatation (arrow).

Figure 2 Pancreatic magnetic resonance imaging scans of pre- and post-radiation therapy. A-C: T2-weighted imaging single scans and magnetic resonance cholangiopancreatography (MRCP) taken one month before radiation therapy; D-F: Magnetic resonance imaging scans and MRCP taken three months after radiation therapy. T2WI: T2-weighted imaging; MRCP: Magnetic resonance cholangiopancreatography.

Figure 3 Computed tomography image with dose distribution of radiation therapy. A: An axial image; B: A coronal image. White, red, inner-orange, outer-orange and yellow lines show 52.5 Gy, 50 Gy, 47.5 Gy, 45 Gy and 42.5 Gy, respectively.