A 19-year-old man with a 2-day history of recurrent headaches and prior marijuana use. A 19-year-old man with a 2-day history of recurrent headaches and.

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Presentation transcript:

A 19-year-old man with a 2-day history of recurrent headaches and prior marijuana use. A 19-year-old man with a 2-day history of recurrent headaches and prior marijuana use. Noncontrast CT was negative for acute hemorrhage (not shown). Conventional angiography (A) reveals multifocal areas of moderate narrowing and irregularity involving the cerebral vasculature (white arrows, A). These areas resolved following intra-arterial administration of verapamil (white arrows, B). Clinical course and imaging findings are consistent with RCVS. T.R. Miller et al. AJNR Am J Neuroradiol 2015;36:1392-1399 ©2015 by American Society of Neuroradiology