Situs ambiguous is an unpredictable anomaly characterized by disorder of the organ arrangement in the chest and abdomen. We report a case of situs ambiguous found incidentally in a 73-year-old man with gastric cancer. Preoperative imaging showed polysplenia, a bridging liver, a midline gall bladder, and pancreatic divisum. The vessels around the stomach were clearly shown by computed tomography with multiplanar reconstruction (MPR). Computed tomography with MPR proved a good diagnostic tool for identifying both the abdominal vessels and the location of the organs. Based on a precise evaluation of this unusual anatomy, we performed distal gastrectomy with dissection of the regional lymph nodes.
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Therapeutic endoscopic retrograde cholangiopancreatography in a patient with asplenia-type heterotaxy syndrome: A case report.
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Department of Gastroenterology, The Second Affiliated Hospital of Kunming Medical University, Kunming 650101, Yunnan Province, China.
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The Polysplenia Syndrome (PSS) is a form of heterotaxy, a rare congenital anomaly with an estimated incidence of 1 in 250,000 live births, first described by Helwig in 1929. Most patients with polysplenia syndrome die during the neonatal period due to severe associated cardiac and biliary anomalies. Nevertheless, some individuals present with moderate cardiovascular malformations or abdominal anomalies, often discovered incidentally in adulthood.
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