Microneurosurgical treatment of a small perimesencephalic pure pial arterial malformation: an under-recognized etiology of angiographically occult subarachnoid hemorrhage. Illustrative case

• Published in: Journal of neurosurgery. Case lessons Vol. 6; no. 5
• Main Authors: Sterner, Robert C, Greeneway, Garret P, Erginoglu, Ufuk, Martínez Santos, Jaime L, Baskaya, Mustafa K
• Format: Journal Article
• Language: English
• Published: United States American Association of Neurological Surgeons 31.07.2023
• Subjects: Case Lesson; pure PAM; PAM; superior cerebellar artery; pure pial arterial malformation; pure arterial malformation

Pial arterial malformations (PAMs) are rare vascular lesions consisting of dilated tortuous arteries without venous drainage. Current PAM understanding is limited by the lesion's rarity, limited anatomopathological studies, and frequent misclassifications. A 23-year-old male experienced two spo...