Doctors stunned to find huge air pocket where part of man's brain should be

An 84-year-old man admitted to hospital in Northern Ireland was found to have a huge, air-filled cavity in his right frontal lobe

An elderly man who turned up in an emergency department in Northern Ireland after a series of falls has stunned doctors who found a huge air-filled cavity where part of his brain should have been.

The 84-year-old was referred to A&E by his doctor after several months of feeling unsteady on his feet and experiencing falls, and three days of weakness in his left arm and leg.