The outcome of a pregnant woman with a minor head injury: an ossified subdural hematoma (OSDH).

We experienced an ossified subdural hematoma (OSDH), which is an extremely rare form of chronic subdural hematoma (SDH), in the dominant hemisphere of a 35-year-old woman. She presented to our outpatient clinic with a complaint of a headache; she had previously experienced a head injury while she was pregnant. We performed surgery with extreme caution because the lesion was attached to the surrounding tissue.