Undiagnosed Heart Condition Killed Boyzones Stephen Gately

An undiagnosed heart condition claimed the life of Boyzone singer Stephen Gately, a forensic report revealed on Thursday.

Gately, who died in October, suffered from atheromatosis, a thickening of the arteries. A preliminary pathology report showd the star died from an acute pulmonary edema, a buildup of fluid on the lungs caused by the atheromatosis.

Though alcohol and drugs were previously thought to be involved, the report showed neither played a role in his death.

Atheromatosis is unusual in people under 50. Gately's mother told reporters she thought a heart condition might be involved because several family members suffered from a similar disease.

Gately is survived by his partner, Andrew Cowles. The two were vacationing in Spain at the time of his death.