Pseudocyst formation is a known complication of acute or chronic pancreatitis. Various complications can occur because of pseudocyst (eg, biliary obstruction, infection, rupture with fistula formation, and hemorrhage owing to pseudoaneurysm formation). Pseudoaneu-rysms due to a pancreatic pseudocyst have been described in relation to various visceral arteries. We report the first case of renal artery pseudoaneurysm owing to pancreatic pseudocyst.A 42-year-old man developed sudden-onset left flank pain 3 weeks after the diagnosis of acute biliary pancreatitis. Contrast-enhanced computed tomography scanning revealed a pseudocyst (17 X 11 X 14 cm) of the pancreas and a large subcapsular hematoma with enhancing pseudoaneurysm in the lower pole of the left kidney (Fig. 1).
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机译：假性囊肿的形成是急性或慢性胰腺炎的已知并发症。由于假性囊肿可能会发生各种并发症（例如，胆道梗阻，感染，瘘形成破裂和假性动脉瘤形成引起的出血）。已经针对各种内脏动脉描述了由于胰腺假性囊肿引起的假性动脉瘤。我们报道了第一例由于胰腺假性囊肿而导致的肾动脉假性动脉瘤。一名42岁的男子在诊断为急性胆源性胰腺炎3周后出现了突然发作的左胁腹疼痛。对比增强的计算机体层摄影术扫描显示，胰腺的假性囊肿（17 X 11 X 14 cm）和大的囊下血肿，左肾下极增强了假性动脉瘤（图1）。
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