Ms Desmond recovered from a near- fatal brain haemorrhage almost three years ago.

She followed their example, eventually suffering fatal brain damage aged 22.

One patient recovered completely; the other patient improved slightly before developing fatal brain metastases.

That patient was diagnosed a month later with sporadic CJD, a rare but fatal brain-wasting condition.

In the younger patient drainage and the administration of antibiotics were followed by fatal brain oedema.

That patient was diagnosed a month later with sporadic CJD, an extremely rare but fatal brain-wasting condition.

Biogen and Elan pulled Tysabri off the market in February 2005 because two patients developed fatal brain infections.

Prosecutors said Love suffered fatal brain trauma when Huguely slammed her head against a wall in her apartment.

The 18-year-old sustained a blow to the side of the head that resulted in a fatal brain injury.

The patients had Creutzfeldt-Jakob disease or CJD, a fatal brain-wasting illness in a family of diseases called prion diseases.

The risk of a potentially fatal brain disorder with Tysabri increases as patients receive more infusions, the FDA says.

But the couple decided to pack up their lives after John suffered a near- fatal brain aneurysm four years ago.

Commonly known as Mad Cow Disease, the fatal brain disease was first diagnosed in an Irish animal in 1989.

Pathologists could not determine the cause of fatal brain injuries suffered by a baby boy who died aged 15 months.

Treatments like beta-interferon cause flu-like symptoms while a newer drug, Biogen's Tysabri, can cause a rare but fatal brain disease.

His tumor shrank dramatically with Tafinlar, and he began to walk again, only to experience a fatal brain hemorrhage within weeks.