Rare complications of a low lying median arcuate coeliac ligament.

Pancreaticoduodenal artery aneurysm is a rare complication of coeliac artery stenosis secondary to a low lying median arcuate coeliac ligament. This article reports the case of a 69-year old man who presented with left arm and leg weakness, clinically in keeping with right hemisphere stroke. Initial CT brain scan was within normal limits. The patient did not receive thrombolysis as he was outside the time window. 3 hours later the patient experienced sudden onset epigastric pain and acute shock. CT aorta abdominal was diagnostic of a ruptured inferior pancreaticoduodenal artery aneurysm. Repeat CT brain the following day showed subacute infarction within the right frontal lobe. Embolisation of the aneurysm was successfully performed. It is well documented that ischaemic stroke can cause acute hypertension. This acute hypertension probably contributed to the rupture of the pancreaticoduodenal artery aneurysm. The patient was well on discharge and remains well 2 months on.