"abdominal pain ~ 85%"
"mass ~ 60%"
"weight loss ~ 50%"
"obstructive jaundice ~ 40% of cases"
"secondary lymphoma: found in 30% of non-Hodgkin lymphoma patients with widespread disease, it is the dominant form and is the result of direct extension from peripancreatic lymphadenopathy 1"
"focal form: occurs in the pancreatic head in 80% of cases and has a mean size of 8 cm"
"diffuse form: infiltrative, leading to glandular enlargement and poor definition, features that can simulate the appearance of acute pancreatitis"
"focal form: low signal intensity on T1-weighted images and intermediate signal intensity on T2-weighted images (slightly higher signal intensity than the pancreas but lower signal intensity than fluid), and shows faint contrast enhancement 1"
"diffuse form: low signal intensity on T1- and T2-weighted MR images and shows homogeneous contrast enhancement, although small foci of reduced or absent enhancement are sometimes seen 1"
"encasement of the peripancreatic vessels may occur; vascular invasion is less common in lymphoma than in adenocarcinoma 1-2"
"encasement of the peripancreatic vessels may occur; vascular invasion is less common in lymphoma than in adenocarcinoma 1-2"