ABSTRACT
Lesions of the ventricular ependyma and its derivatives can be visualized by CT scans, and their nature and extent can be determined. Generalized enhancement of the ependyma following the administration of intravenous contrast media can be seen with spendymoma, medulloblastoma, metastatic dysgerminoma, glioblastoma multiforme, and ependymitis. Localized ependymal enhancement can often be identified in the presence of acute ventriculitis, vascular anomalies or malformations, cerebral infarctions with luxury perfusion, and vascular neoplasms.
Subject(s)
Cerebral Ventricle Neoplasms/diagnostic imaging , Ependyma , Tomography, X-Ray Computed , Adolescent , Brain Diseases/diagnostic imaging , Cerebral Hemorrhage/diagnostic imaging , Child, Preschool , Dysgerminoma/diagnostic imaging , Ependyma/abnormalities , Ependyma/embryology , Ependyma/pathology , Ependymoma/diagnostic imaging , Female , Glioblastoma/diagnostic imaging , Hamartoma/diagnostic imaging , Humans , Inflammation/diagnostic imaging , Intracranial Arteriovenous Malformations/diagnostic imaging , Male , Medulloblastoma/diagnostic imaging , Middle Aged , Neoplasm Metastasis , PregnancyABSTRACT
Intracranial gas may be epidural, subdural, subarachnoid, parenchymal, or intraventricular. Intracranial air can be easily diagnosed and its location correctly assessed by computerized tomography. Potentially serious complications of intracranial air, such as tension pneumocephalus, can be rapidly and accurately identified, facilitating appropriate clinical therapy.
