A Case of Fully Thrombosed Middle Cerebral Artery Aneurysm Resembling Cavernous Malformation: A Detailed Case Study with Surgical Video and Literature Review - Takeaways - MDSpire

A Case of Fully Thrombosed Middle Cerebral Artery Aneurysm Resembling Cavernous Malformation: A Detailed Case Study with Surgical Video and Literature Review

  • By

  • Beatrice Zucca

  • Marissa Koscielski

  • Aaron Kakazu

  • Sanjit Shah

  • Mary Gaskill-Shipley

  • Matthew Smith

  • Charles Prestigiacomo

  • Jonathan Forbes

  • March 24, 2026

  • 0 min

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  • 1

    Middle cerebral artery aneurysms account for 20–25% of all intracranial unruptured aneurysms, with complete thrombosis being exceptionally rare.

  • 2

    Complete thrombosis of an MCA aneurysm can be mistaken for cavernous malformations or neoplasms due to unremarkable angiographic imaging.

  • 3

    A 35-year-old woman underwent surgery for a completely thrombosed superior M2 aneurysm after initial imaging suggested a ruptured cavernous malformation.

  • 4

    The surgical procedure involved ultrasonic evacuation of thrombus and plaque, followed by clip reconstruction, with stable neuromonitoring throughout.

  • 5

    Post-operative imaging confirmed complete preservation of vasculature and resolution of symptoms, highlighting diagnostic challenges of thrombosed aneurysms.

Original Source(s)

A Case of Fully Thrombosed Middle Cerebral Artery Aneurysm Resembling Cavernous Malformation: A Detailed Case Study with Surgical Video and Literature Review

  • by Beatrice Zucca, Marissa Koscielski, Aaron Kakazu, Sanjit Shah, Mary Gaskill-Shipley, Matthew Smith, Charles Prestigiacomo, Jonathan Forbes

  • March 24, 2026

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