A 38-year-old pregnant woman in her 24th week of gestation was admitted to our neurosurgical intensive care unit with a 5-cm cerebellar hemangioblastoma and acute hydrocephalus. Initial management included the placement of an external ventricular drain to prevent neurological deterioration. Five days after the initial diagnosis, the patient successfully underwent a neurosurgical intervention to remove the lesion. Transcranial ultrasound was used to determine the optimal ventricular drain level and facilitate weaning, bypassing the need for cerebral computed tomography and cerebral magnetic resonance imaging, which would have otherwise been necessary in postoperative follow-up.
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