Hypervascular pancreatic lesions

Last revised by Yahya Baba on 5 Dec 2021

Hypervascular pancreatic lesions are findings that enhance more or similarly to the background pancreatic parenchyma in the late arterial phase, on contrast-enhanced CT or MRI.

Anatomical variants
Vascular anomalies
  • arterial aneurysm 1
    • involves the pancreaticoduodenal and /or gastroduodenal arteries
    • well-circumscribed
    • communicates with the adjacent vessel
    • enhancement pattern identical to the aorta
    • peripheral atherosclerotic calcifications may be seen
  • peripancreatic arterial pseudoaneurysm 1
  • venous aneurysm 1
    • rare
    • enhancement pattern identical to adjacent venous structures
    • luminal communication with adjacent veins
    • usually seen in the setting of cirrhosis and/or portal hypertension
    • involves the splenic and portal veins

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Cases and figures

  • Case 1 : intrapancreatic accessory spleen
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  • Case 2: insulinoma
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  • Case 3: VIPoma
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  • Case 4: arterial pseudoaneurysm
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  • Case 5: hypervascular metastases
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  • Case 6: neuroendocrine tumor
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  • Case 7: pancreatic ACC
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