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KMID : 1237720230560010155
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Anatomy & Cell Biology
2023 Volume.56 No. 1 p.155 ~ p.159
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Vascular anatomy and their variations in Situs inversus totalis using postmortem computed tomographic angiography
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Zangpo Dawa
Nakane Hironobu
Iino Morio
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Abstract
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Studies describing the vascular systems and their variations in Situs inversus totalis (SIT) from a whole-bodycomputed tomographic (CT) angiography perspective are lacking. We report a case of SIT in which postmortem CT angiography (PMCTA) was performed as a part of the forensic death investigation and incidentally detected several vascular variations in it. The PMCTA procedure was performed using the multiphase PMCTA protocol. Almost all major vessels were visualized, indeed in a completely reversed pattern. Contrast mixture flow interruptions were noted in the right coronary arterial branches suggesting possible blockage, upon which autopsy revealed >90% vessel occlusions at several locations. As such the cause of death was due to ischemic heart disease. Anomalous origins of the right internal mammary artery; abnormal left thyrocervical trunk and variations in the drainage of testicular veins were noted. Our findings might be helpful to clinicians and add to the body of literature on SIT.
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KEYWORD
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Computed tomography angiography, Internal mammary artery, Situs inversus, Gonadal veins, Thyrocervical trunk
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