ABSTRACT
Unilateral oculomotor nerve palsy, often caused by aneurysmal compression, is one of the decisive findings for confirming the site of a ruptured aneurysm. However, arterial compression can also cause unilateral oculomotor nerve palsy. Here, we present the case of a 59-year-old woman with a ruptured right internal carotid-posterior communicating artery aneurysm accompanied by contralateral oculomotor nerve palsy. The nerve was found to be compressed by the posterior cerebral artery and was isolated from the ruptured aneurysm. When confirming a ruptured aneurysm based on the evidence of unilateral oculomotor palsy, the arteries surrounding the nerve must be thoroughly assessed.
Subject(s)
Aneurysm, Ruptured/complications , Intracranial Aneurysm/complications , Oculomotor Nerve Diseases/etiology , Posterior Cerebral Artery/pathology , Subarachnoid Hemorrhage/complications , Female , Humans , Middle Aged , Subarachnoid Hemorrhage/congenitalABSTRACT
High-resolution ultrasonography allows accurate assessment of ventricular size and contour in the infant, so that conditions such as hydrocephalus, holoprosencephaly, and agenesis of the corpus callosum can be diagnosed. Ventricular shunt catheter placement can be guided, and some of the complications of cerebrospinal fluid shunt systems can be identified. Infection of the ventricular fluid causes striking findings, including increased echogenicity and septation within the lumen.
