This was treated, but during his five-year check-up, a further tumour was noted on his pituitary gland. In April 2004, he began to lose his sight as a result of a rare vascular cancer, haemangiopericytoma. In preparation for surgery he was prescribed the steroidal drug dexamethasone, one of the effects of which was to initiate a temporary burst of mental and physical energy.
This was addressed, but during his five-year examination, a further tumour was discovered on his pituitary gland. In April 2004, he started to lose his sight due to a rare vascular cancer, haemangiopericytoma. Before surgery, he was given the steroidal medication dexamethasone, one of the effects of which was to trigger a temporary surge in mental and physical energy.