Published in:
01-12-2024 | Subdural Hematoma | Case Report
Spontaneous occlusion of ruptured microaneurysm formed on postoperative transosseous anastomosis after indirect revascularization in a patient with moyamoya disease
Authors:
Kazuki Kondo, Shoko Hara, Azumi Kaneoka, Motoki Inaji, Yoji Tanaka, Tadashi Nariai, Taketoshi Maehara
Published in:
Acta Neurochirurgica
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Issue 1/2024
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Abstract
A 40-year-old female with a history of ischemic moyamoya disease treated with indirect revascularization at ages 12 and 25 years presented with a sudden severe headache. Imaging studies revealed focal parenchymal hemorrhage and acute subdural hematoma, confirming a microaneurysm formed on the postoperative transosseous vascular network as the source of bleeding. Conservative management was performed, and no hemorrhage recurred during the 6-month follow-up period. Interestingly, follow-up imaging revealed spontaneous occlusion of the microaneurysm. However, due to the rarity of this presentation, the efficacy of conservative treatment remains unclear. Further research on similar cases is warranted.