Kim Deog-Im, Han Seung-Ho
Department of Nursing, College of Nursing, Keimyung University, 1095 Dalgubeol-daero, Dalseo-gu, 42601, Daegu, Republic of Korea.
Department of Anatomy, College of Medicine, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, 06974, Seoul, Republic of Korea.
Surg Radiol Anat. 2017 Jul;39(7):803-806. doi: 10.1007/s00276-016-1770-2. Epub 2016 Dec 20.
The arterial system of the gastrointestinal tract has many variations. However, variation in the inferior mesenteric artery (IMA) is less common than for the other abdominal arteries. The case in the present cadaver subject showed a variation in the anatomy of the IMA that differed from those seen in previous studies, because it did not originate from the abdominal aorta and had no branches. A single artery arising from branches of the inferior pancreaticoduodenal and middle colic arteries supplied the hindgut. This variation generated blood vessels along the digestive tract during the later stages of development. The marginal artery of the colon in this case probably was more highly developed instead of the IMA. It is clinically important to know the range of variations, as these data are used in the diagnosis and treatment of abdominal diseases. This hitherto unknown variation might affect the health of patients, and we recommend radiographic examinations for diagnosis and treatment.
胃肠道的动脉系统有许多变异。然而，肠系膜下动脉（IMA）的变异比其他腹部动脉少见。本尸体标本的情况显示，IMA的解剖结构存在变异，与以往研究中所见不同，因为它并非起源于腹主动脉且无分支。一条由胰十二指肠下动脉和结肠中动脉分支发出的单一动脉供应后肠。这种变异在发育后期沿消化道生成了血管。在这种情况下，结肠边缘动脉可能比IMA发育得更好。了解变异范围具有临床重要性，因为这些数据用于腹部疾病的诊断和治疗。这种迄今未知的变异可能会影响患者健康，我们建议进行影像学检查以用于诊断和治疗。
