Posttraumatic retroclival hematoma and transverse clival fracture in an adult: A case report and literature review

Retroclival hematomas and clival fractures are not common, and retroclival hematoma is one of the types of posterior fossa extra-axial hematomas. The exact incidence is not known. They can be categorized into epidural or subdural hematomas based on their relationship to the tectorial membrane. In the literature, most cases occur in the pediatric population, and a few cases have been reported in the adult population as well. The etiology is related to accidental trauma in most cases. Others occur generally spontaneously due to coagulopathy, pituitary apoplexy, and ruptured aneurysms. Still, some remain idiopathic without an identifiable cause. This is a 28-year-old male patient who presented after sustaining a motor vehicle accident. He was a pedestrian walking by the side of a road when he was suddenly hit by a minibus. He lost consciousness immediately and was non-communicating after the trauma with right ear bleeding. GCS is 9/15, right pupil has cataract, and left pupil is midsized and reactive. A brain CT scan demonstrated retroclival hematoma extending from midclivus to the lower level of C2, right mastoid fracture, multiple post-traumatic subarachnoid hemorrhage, pneumocephalus, and transverse upper third clival fracture. This patient's GCS on the second day improved to 14/15. All cranial nerves are intact. Discharged on the 7th day with GCS 15/15. Retroclival hematomas and clival fractures are very rare in adults, most often reported in pediatric age groups, and mostly occur due to accidental trauma. Associated cranial nerve palsy is common and the management is non-surgical in most of the cases.