Giant dissecting aneurysm of the superior mesenteric artery with distal branch involvement and true lumen collapse: a case report - Takeaways - MDSpire

Giant dissecting aneurysm of the superior mesenteric artery with distal branch involvement and true lumen collapse: a case report

  • By

  • Chuwen Chen

  • Yiyuan Li

  • Bin Huang

  • Xiyang Chen

  • June 9, 2026

  • 0 min

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  • 1

    Isolated superior mesenteric artery dissecting aneurysm (ISMADA) is rare and can lead to severe complications, including rupture.

  • 2

    A 70-year-old man presented with a giant ISMADA, characterized by a 5 cm pulsatile mass and severe true lumen compression.

  • 3

    Emergency surgical intervention involved resection of the aneurysm and prosthetic graft reconstruction, confirming graft patency postoperatively.

  • 4

    Conservative management is recommended for uncomplicated ISMADA, while complex cases may require open surgical repair.

  • 5

    At 30-month follow-up, the patient remained asymptomatic without any gastrointestinal complaints after successful treatment.

Original Source(s)

Giant dissecting aneurysm of the superior mesenteric artery with distal branch involvement and true lumen collapse: a case report

  • by Chuwen Chen, Yiyuan Li, Bin Huang, Xiyang Chen

  • June 9, 2026

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