Cystic lesions of the pancreas
Dr MT Niknejad and Dr Frank Gaillard et al.
The differential for cystic lesions of the pancreas includes
-
unilocular
- pancreatic pseudocyst
- intraductal papillary mucinous neoplasms (IPMN)
- serous cystadenoma uncommonly uni/macro locular
- pancreatic cysts occur in association with
-
macrocystic : multilocular
- mucinous cystic neoplasm(s) of pancreas : usually body and tail
- intraductal papillary mucinous neoplasms (IPMN)
- serous cystadenoma uncommonly uni/macro locular
- acinar cell cystadenocarcinoma
-
microcystic
- serous cystadenoma : usually head. 30% have central scar
-
cystic with a solid component
- macrocystic tumours can also have a solid component
- solid pseudopapillary tumour of pancreas
- primary ductal pancreatic tumour with cystic degeneration
- cystic degeneration of islet cell tumours
- cystic teratoma
- metastases to pancreas
Retroperitoneal lesions, extrinsic to the pancreas, can of course mimic pancreatic cystic lesions, when close to the gland. Examples include:
- cystic lymphadenopathy (e.g. necrotic)
- duodenal diverticulum
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