Herniation secondary to critical cerebrospinal fluid hypovolemia after supratentorial craniotomy: a single-center case series.

Background: Critical cerebrospinal fluid hypovolemia (CCSFH) is a rare postcraniotomy condition in patients with acute supratentorial brain injury, often mistaken for intracranial hypertension. This article aims to enhance awareness of CCSFH by describing its clinical and radiological characteristics.

Methods: Between January 2019 and November 2023, 330 consecutive patients with acute critical brain injury underwent supratentorial craniotomy.

Isolated traumatic supraclinoid internal carotid artery dissection diagnosed by high-resolution vessel wall MRI.

Background: Isolated traumatic supraclinoid internal carotid artery (ICA) dissection is a rare complication of blunt craniomaxillofacial trauma, and differentiation from atherosclerosis is the key factor for confirming the diagnosis.

Case Description: A 53-year-old man was admitted because of blunt trauma to his head and face. His primary manifestations were disability of abduction of the left eye on day 2, recurrent epistaxis and a blowing murmur in the left ear on day 4.