RESUMO
Pupil-involving oculomotor nerve palsy (ONP) is frequently associated with compressive lesion such as intracranial aneurysm originating from the posterior communicating arteries. Vascular variant of posterior intracranial circulation is regarded as an uncommon cause and association between these vascular variants and intracranial hypertension has not been reported. We present an 18-year-old girl with pupil-involving ONP combined with idiopathic intracranial hypertension who revealed compression of oculomotor nerve by a vascular variant of superior cerebellar artery (SCA). This is a rare case of an ONP attributed to compressive effect from an aberrant SCA affected by intracranial hypertension.
Assuntos
Adolescente , Feminino , Humanos , Artérias , Aneurisma Intracraniano , Hipertensão Intracraniana , Doenças do Nervo Oculomotor , Nervo Oculomotor , Pseudotumor CerebralRESUMO
Artery to artery embolism is one of the main causes of cerebral infarction, and it can originate from many locations. Here we report a case of cerebral infarction in which calcified cerebral emboli were detected in brain computed tomography (CT). The calcified emboli were thought to originate from a carotid plaque that showed calcification and ulceration. We present histologic and micro-CT findings of a carotid plaque as a source of artery to artery embolism.