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  • Title: Nocturnal headaches and pulsatile cranial mass: the tip of an iceberg.
    Author: Smith AR, Carpenter J, Pergami P.
    Journal: Pediatr Neurol; 2013 Nov; 49(5):358-60. PubMed ID: 24139535.
    Abstract:
    BACKGROUND: Capillary malformation-arteriovenous malformation (CM-AVM) disorder is a newly defined hereditary disorder of the vasculature with typical defining features that include cutaneous capillary malformations associated with high-flow lesions in various other organ systems. Mutations on the RASA1 gene are reported to be associated with a variety of vascular malformations and present with a widely varying phenotype. PATIENT: A healthy 3 year old presented with acute onset of severe nocturnal headaches, nausea, and vomiting associated with a 2-cm pulsatile mass and prominent superficial veins on her forehead. Neuroimaging demonstrated a complex vascular malformation with multiple arteriovenous fistulae and cavernous angiomas present in multiple locations in the brain, but not in any other organ system. RESULTS: The patient was found to have a mutation of the RASA1 gene, which has not been previously described in the literature. CONCLUSIONS: This case describes a new RASA1 mutation with a phenotype that has not been previously described with a combination of pial fistulae and intracranial AV fistula in the absence of arteriovenous malformations.
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