Sinusitis is a prevalent, typically benign condition, yet uncommon but severe complications, including intracranial infection and death, may occur if cases go unrecognized are not promptly appropriately treated..

The case of a young woman who suffered from benign intracranial hypertension is described. The clinical history, examination and investigations indicated no cause for her disease, other than obesity. Treatment with corticosteroids prolonged her symptoms and signs, and she only responded to repeated lumbar puncture after dexamethasone was stopped. The lesson we learned was that corticosteroids s...