NDLI: Congenital incomplete fusion of superior mesenteric artery mimicking dissection.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Sharma, Vasu Keshav H'ng, Martin Weng Chin
Description	Country affiliation: Singapore Author Affiliation: Sharma VK ( Department of Diagnostic Radiology, Tan Tock Seng Hospital, Singapore, Singapore.); H'ng MW ( Department of Diagnostic Radiology, Tan Tock Seng Hospital, Singapore, Singapore.)
Abstract	BACKGROUND: Both spontaneous SMA dissection and anatomical variants of GIT vasculature are well known entities. We present a case initially diagnosed as an SMA dissection on CT, but upon detailed review of the imaging findings was considered to be incompletely fused ventral segmental arteries--a rare anatomic variant not well described before. This finding is clinically significant, as it can mimic a vascular dissection and such a wrong diagnosis will lead to unnecessary investigation and intervention. CASE REPORT: A 62-year-old male patient presented with abdominal pain of uncertain etiology. The initial CT revealed an abnormal appearance of the superior mesenteric artery (SMA) which was diagnosed as SMA dissection. However, the appearance of this 'dissection' was unusual and there was a mismatch between the clinical presentation and radiological findings. The scan was reviewed and a 3D reconstruction of the abdominal aortal and visceral arteries was performed. The abnormal appearance of the SMA was deemed to be from a congenital anatomical variant. A review of the embryological origin of gut vasculature provides a likely explanation for this appearance. CONCLUSIONS: Ours is an unusual case of a developmental variant that has not been well described hitherto. Attention to the ancillary radiological signs and understanding the embryological origin of the abdominal vasculature is important to distinguish such variants from pathology.
File Format	HTM / HTML
e-ISSN	19415923
DOI	10.12659/AJCR.892527
Journal	American Journal of Case Reports
Volume Number	16
Language	English
Publisher	International Scientific Information
Publisher Date	2015-01-27
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Medicine Aneurysm, Dissecting Diagnosis Mesenteric Artery, Superior Abnormalities Vascular Malformations Diagnosis, Differential Tomography, X-ray Computed
Content Type	Text
Resource Type	Case study Article

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