The rupture of hemangioblastoma with a hemorrhage, especially a ventricular system hemorrhage caused by the rupture of a hemangioblastoma located in the posterior part of the fourth ventricle, is very rare. This study reports a case of this rare disease. The patient was a 38-year-old male with onset after a sudden headache. Computed tomography examination after onset revealed a hemorrhage in th...

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 isolate...

Oligodendrogliomas comprise approximately 4% of the total of brain tumours, and of this group only 7% are found in the posterior fossa, including 2% in the fourth ventricle. Oligodendrogliomas of the fourth ventricle therefore comprise less than one case in 1,000 to 1,500 brain tumours (0 08 %). One cannot expect to encounter much more than one in a lifetime even in a large-neurosurgical experi...

Over the course of five years, a total of ten cases were collected of glioma patients in whom a distant lesion at the fourth ventricle was noted. A 'distant lesion' was defined as a lesion with a normal appearing tissue bridge at imaging between the primary and secondary locations. Previous imaging of these patients was reviewed along with clinical history, course of therapy, and available hist...

Introduction The three foramina of the fourth ventricle of the human brain were first described during the 19th century. The primary purpose of this article was to review the anatomy of the foramina of the human fourth ventricle, as well as the main clinical conditions related to pathology of these neurosurgically important structures. The existing literature regarding the gross and neurosurgic...