Fig. 8—
10-year-old girl with abdominal pain and enlarged pancreas by ultrasound, ultimately given diagnosis of autoimmune pancreatitis. Axial fat-saturated T2-weighted MRI shows diffuse, sausagelike enlargement of pancreas (arrow) with diffusely increased parenchymal signal and surrounding T2-weighted hyperintense halo. There is lack of substantial peripancreatic edema or fluid despite extent of parenchymal abnormality.