Signs and Symptoms and Pathophysiology - Bruising behind the ears - Bruising around the eyes - Blood behind the ear drum - Cerebrospinal fluid (CSF) leak from the nose or ear - Cranial nerve palsy - Basilar skull fractures involve breaks in the posterior or anterior skull base - Temporal bone fracture is the most common type - Fractures can occur around the foramen magnum, leading to injury to blood vessels and nerves - Damage to cranial nerves may result in loss of facial function or hearing loss - Basilar skull fractures can be life-threatening

Management and Prognosis - Preventive antibiotics do not provide clinical benefit in preventing meningitis - Treatment is based on the extent and location of the injury - Surgery may be required to seal a CSF leak, relieve pressure on a cranial nerve, or repair blood vessel injury - CT scan is typically used for diagnosis - Facial fractures often accompany basilar skull fractures - Non-displaced fractures usually heal without intervention - Basilar skull fractures increase the risk of meningitis - The efficacy of prophylactic antibiotics is uncertain

Society and Culture - Basilar skull fractures are a common cause of death in motor racing accidents - Several race car drivers have died as a result of basilar skull fractures - Head and neck restraints, such as the HANS device, are mandated in motorsports to prevent basilar skull fractures - The HANS device has been proven to save lives in multiple accidents - Since the implementation of the HANS device, there have been no crash-related fatalities in NASCAR's national divisions

Classification - ICD-10 code for basilar skull fracture is S02.1 - ICD-9-CM code for basilar skull fracture is 801.1

Causes, Symptoms, Diagnosis, and Treatment - Trauma to the head - Motor vehicle accidents - Falls from a height - Sports injuries - Physical assaults - Headache - Bruising around the eyes or behind the ears - Clear fluid leaking from the nose or ears - Double vision - Difficulty hearing or ringing in the ears - Physical examination - Imaging tests such as CT scan or MRI - Neurological evaluation - Evaluation of cerebrospinal fluid (CSF) from the nose or ears - Evaluation of the patient's medical history and symptoms - Observation and monitoring for mild cases - Pain management - Surgical repair for severe fractures - Antibiotics to prevent infection - Rehabilitation and physical therapy to regain function