Abstract
We experienced two cases of splenic artery aneurysm each arising from a different cause. The first case was a 48-year-old man complaining of left upper abdominal pain. An abdominal computed tomography revealed a 6×4.8cm mass including the contrast medium at the dorsal pancreas. An abdominal angiography revealed a 2.2×1.9cm aneurysm at the splenic artery. Resection of the pancreatic body and tail with splenectomy including the splenic artery aneurysm was carried out. The existence of a pseudoaneurysm ruptured into the pancreas caused by arteriosclerosis was confirmed histopathologically. Case 2 was a 37-year-old woman. Angiography during an examination for a polycystic kidney, revealed two aneurysms at the central and distal splenic arteries, 0.8×0.7cm and 2×1.7cm in size respectively. Resection of the splenic artery and spleen was performed. The histopathologic finding revealed a true aneurysm without arteriosclerosis. This paticular ailment should be taken into consideration by physicians establishing what diseases are characterised by left abdominal pain. Abdominal angiography is useful when deciding upon the proper course of treatment.
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