Splenic artery aneurysms represent approximately 60% of visceral arterial aneurysms. Their incidence at autopsy is 0.02 — 2 % in all age groups and rises to 10.4% above the age of 60. Although splenic artery aneurysms are the most common visceral aneurysms, giant splenic artery aneurysms >10 cm in diameter have rarely been reported. A recent review of the literature came up with 12 true giant splenic artery aneurysms >10 cm. A case of 12-cm splenic artery aneurysms is presented in this study and the imaging findings are described.
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