Splenic artery pseudoaneurysm

Splenic artery pseudoaneurysms are rare. 

Unlike splenic artery true aneurysms, splenic artery pseudoaneurysms will nearly always present with symptoms 2.

While they are sometimes grouped under splenic arterial aneurysms, they are distinct entity and are different from true aneurysms of the splenic artery. In contrast to a true aneurysm the pseudoaneurysm wall contains only the intimal and medial layers 2

Their size can vary and if larger than 5 cm they are called giant splenic artery pseudoaneurysms 3.

Aetiology

They usually occur as a complication of 1-2:

In the case of pancreatitis, the pancreatic enzymes are thought to cause a necrotising arteritis with destruction of vessel wall architecture and fragmentation of elastic tissues.

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Article Information

rID: 19248
Section: Pathology
Synonyms or Alternate Spellings:
  • Splenic artery pseudoaneurysms
  • Pseudoaneurysm of splenic artery
  • Splenic arterial pseudoaneurysm
  • Splenic arterial pseudoaneurysms
  • Splenic artery false aneurysm
  • Splenic arterial false aneurysm

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