Cerebral venous thrombosis as a complication of neuropsychiatric systemic lupus erythematosus.

A 51-year-old woman undergoing steroid treatment for systemic lupus erythematosus (SLE) was admitted to our hospital after developing a fever, consciousness disturbance and seizures, leading to a diagnosis of SLE-induced meningoencephalitis. Although steroid therapy improved her symptoms, she complained of post-lumbar puncture thunderclap headaches during follow-up, and cerebral venous thrombosis (CVT) was subsequently diagnosed on magnetic resonance venography and cerebral angiography. This is a rare case of neuropsychiatric SLE complicated by CVT during treatment for aseptic meningoencephalitis. The onset of aseptic meningoencephalitis and administration of the lumbar puncture and steroid therapy may have induced the development of the patient's CVT symptoms.