Bilateral subdural hematomas in an adult with osteogenesis imperfecta.

Osteogenesis imperfecta (OI) is a rare inherited disorder characterized by disruption of normal collagen formation, brittle bones, and low bone density, predisposing to multiple bone fractures and wide-spectrum symptomatology. Extradural and subdural hematomas and spinal cord injuries have been reported but mainly in children with OI. We cared for a 60-year old woman with OI and bilateral nontraumatic subdural hematomas possibly caused by spontaneous intracranial hypotension.