PMC4954935_01
Plain x-ray film of the abdomen showed intestinal gas and niveau (A). Abdominal CT scan showed isolated superior mesenteric artery dissection with true and false lumen (white arrow). The dissection which began from just after the orifice of the SMA and extended to the distal portion. The narrow true lumen was compressed by the thrombosed false lumen (B). After 15 months from the onset, false lumen disappeared (C).
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Plain x-ray of the abdomen showed niveau (Fig. 1A). The dissection began from just after the orifice of the SMA and separated the SMA into two distinct lumens (Fig. 1B). He was discharged and was symptom-free two years after discharge with no recurrent symptoms or disease progression (Fig. 1C).
PMC4954935_02
Abdominal CT scan showed isolated superior mesenteric artery dissection with true and false lumen, which had patency each other (white arrow) (A). After 18 months from the onset, the dissection did not change without development and/or dilation. In addition, it did not show the formation of aneurysm (B).
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There were no signs of bowel ischemia and the dissection was classified as a type I dissection (patent type with an entry and re-entry) by Sakamoto's classification (Fig. 2A). The patient was symptom-free for five years and there was no progression of dissection on follow-up CT (Fig. 2B).