Clinical ObservationsA Pediatric Case of Reversible Cerebral Vasoconstriction Syndrome With Similar Radiographic Findings to Posterior Reversible Encephalopathy Syndrome

BackgroundReversible cerebral vasoconstriction syndrome occurs predominantly in middle-aged women. Only nine pediatric patients with this syndrome have been reported.Patient DescriptionWe present a ten-year-old boy with reversible cerebral vasoconstriction syndrome with radiographic findings similar to those of posterior reversible encephalopathy syndrome (PRES). He presented with a thunderclap headache without a neurological deficit. Brain magnetic resonance angiography (MRA) revealed multifocal narrowing of the cerebral arteries, whereas magnetic resonance imaging (MRI) with diffusion-weighted imaging and fluid-attenuated inversion recovery demonstrated hyperintense lesions in the occipital lobes and the left cerebellum. The patient's symptoms resolved spontaneously after a few hours with no recurrence. MRA on the second day showed a complete normalization of the affected arteries, and MRI after one month demonstrated improvement in the abnormal findings, leading to a diagnosis of RCVS with radiographic findings similar to those of PRES.ConclusionsThis child's findings suggests that, RCVS, with or without PRES, may occur in children who present with a thunderclap headache.