Delayed angiographic changes in postpartum cerebral angiopathy.

Postpartum cerebral angiopathy is a well-recognised subgroup of the reversible vasoconstriction syndromes. Increasingly described is a delay between clinical onset and angiographic changes. We report a patient who presented 19 days postpartum with severe thunderclap headaches, vertigo and a seizure. The clinical syndrome preceded evidence of extensive vasoconstriction on MRA imaging by 15 days; the changes were reversible at 3 months. Crown