RESUMO
We report a case of spontaneous intracranial hypotension that underwent cerebral angiography. The angiogram showed prominence of the veins and venous phase of the angiogram. This is thought to be secondary to decreased intracranial pressure and subsequent dilation of the venous system to attempt to replace the lost intracranial CSF volume. In situations in which the typical clinical presentation is not present and additional examinations such as cerebral angiography are performed, these findings may be helpful to direct the physicians involved toward the correct diagnosis.
Assuntos
Angiografia Cerebral , Hipotensão Intracraniana/diagnóstico , Pressão Intracraniana/fisiologia , Tomografia Computadorizada por Raios X , Veias Cerebrais/diagnóstico por imagem , Veias Cerebrais/fisiopatologia , Diagnóstico Diferencial , Feminino , Cefaleia/etiologia , Cefaleia/fisiopatologia , Homeostase/fisiologia , Humanos , Processamento de Imagem Assistida por Computador , Imageamento Tridimensional , Hipotensão Intracraniana/etiologia , Hipotensão Intracraniana/fisiopatologia , Angiografia por Ressonância Magnética , Pessoa de Meia-Idade , Exame Neurológico , Flebografia , Punção Espinal , Hemorragia Subaracnóidea/diagnóstico , Vasodilatação/fisiologiaRESUMO
A 5-year-old boy was evaluated for a left retrotympanic mass found at otoscopy. Subsequent petrous bone CT and MR angiographic examinations demonstrated bilateral aberrant internal carotid, bilateral stapedial artery persistence, and bilateral duplicated internal carotid arteries. Imaging findings and their clinical relevance are discussed. A second case of unilateral aberrant internal carotid artery with a persistent stapedial artery is included for comparison.