Muraki Mika, Moriya Tomohisa, Katada Yoshiaki, Masuno Ryuhei, Suzuki Shuji, Sugahara Shinji, Saito Kazuhiro
Department of Radiology, Tokyo Medical University Ibaraki Medical Center, 3-20-1, Chuo, Inashiki-gun Ami-machi, Ibaraki 300-0395, Japan.
Department of Gastroenterological Surgery, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan.
Radiol Case Rep. 2022 May 9;17(7):2484-2487. doi: 10.1016/j.radcr.2022.03.113. eCollection 2022 Jul.
The middle mesenteric artery, also known as the third mesenteric artery, is a very rare anomaly. Several anatomical variations of middle mesenteric artery have been reported; in these reports, the right colic artery and/or middle colic artery often originate directly from the aorta. Here, we report a middle mesenteric artery in which the middle colic artery originated directly from the abdominal aorta. We also provide three-dimensional computed tomography and angiography findings and discuss anatomical and embryological considerations.
肠系膜中动脉，也称为第三肠系膜动脉，是一种非常罕见的异常情况。已有多篇报道提及肠系膜中动脉的几种解剖变异；在这些报道中，右结肠动脉和/或中结肠动脉常直接发自主动脉。在此，我们报告一例中结肠动脉直接发自腹主动脉的肠系膜中动脉病例。我们还提供了三维计算机断层扫描和血管造影结果，并讨论了解剖学和胚胎学方面的考量。
