Metrizamide CT ventriculography in the evaluation of a pseudoballooned fourth ventricle.
نویسندگان
چکیده
The radiologic appearance of a "ballooned" fourth ventricle usually occurs consequent to obstruction of its exit foramina. One variant of ballooned fourth ventricle is the "isolated" ventricle, which occurs when there is both an aqueductal stenosis as well as extraventricular obstructive hydrocephalus. We describe the neuroradiologic evaluation of a patient originally thought to have an isolated fourth ventricle, the computed tomographic (CT) appearance of which was simulated by a midline posterior fossa ependymal cyst.
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ورودعنوان ژورنال:
- AJNR. American journal of neuroradiology
دوره 5 6 شماره
صفحات -
تاریخ انتشار 1984