Pancreatic serous cystadenoma
Mild epigastric pain. No history of pancreatitis. Incidentally noted cystic pancreatic lesion on ultrasonography (not available).
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A cystic pancreatic lesion is noted at the head part measuring around 5 cm. It shows a thin enhancing wall with multiple enhancing septae. No diffusion restriction. No communication with pancreatic duct. The main pancreatic duct is not dilated. Atrophic background pancreatic parenchyma. No related adenopathies.
CBD is normal in caliber (6 mm). No biliary dilatation.
Bilateral renal peripelvic cysts are also noted.
Imaging findings of a pancreatic head lesion are compatible with pancreatic serous cystadenoma (microcystic adenoma). It is a benign tumor, more common in females in middle-age and elderly, usually between 70~80 years old.
The favoring radiological features are usually a multicystic, lobulated mass, located in the head of the pancreas, often associated with a central scar and calcification. No communication to the main duct.