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A 24-year-old female in the sixth month of pregnancy developed headache and vomiting caused by an intraventricular hemorrhage from moyamoya vessels. Superficial temporal artery-middle cerebral artery bypass surgery was performed when she was in the seventh month of pregnancy in order to pre vent intracranial rebleeding or a cerebrovascular ischemic attack during labor and delivery. The pa tient delivered successfully at full term, without complications. The clinical features and management of patients with such rare occurrences during pregnancy are discussed and seven previously reported cases are reviewed.

A new, flexible fiberoptic ventriculoscope for observation of the ventricles and major cisterns is reported. This device has been safely used to examine patients with obstructive hydrocephalus due to lesions within the lateral and third ventricles or to congenital aqueductal stenosis. With this instru ment, a pineal tumor protruding into the third ventricle was successfully observed and photographed in situ.