Radiology imaging “Pancreatic Arteriovenous Malformation”

         More than cases of pancreatic arteriovenous malformation (AVM) have been reported in the literature. The etiology of this condition is not clear. Most had been regarded as congenital, whereas the others were presumed to be secondary to pancreatitis or liver cirrhosis. Clinical manifestations of pancreatic AVM include abdominal pain, recurrent gastrointestinal tract bleeding, portal hypertension, and duodenal ulcer. Angiography or the artery-dominant phase of dynamic CT is diagnostic (Fig. in bellow). MR imaging and color Doppler ultrasonography may also be useful.
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“Radiology imaging” Arteriovenous malformation in the region of the head of the pancreas
A 34-year-old man presented with recurrent duodenal ulcer.
(a) CT scan at artery-dominant phase shows an intense enhancement of the region of the head of the pancreas (arrows). SMV = superior mesenteric vein.
(b) T1-weighted MRI demonstrates an area of signal void in the head of the pancreas (arrows).
(c and d) Angiography reveals arteriovenous malformation (curved arrows) in the head of the pancreas fed by pancreatic and duodenal arteries and draining to pancreaticoduodenal veins and the superior mesenteric vein.
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