Heather O'Rourke has become the focus of renewed attention as RadarOnline.com can reveal a harrowing detail in her autopsy has resurfaced, shedding light on the medical mystery that surrounded the Poltergeist child star 's sudden death.

O'Rourke, who played Carol Ann Freeling in the three Poltergeist films, died unexpectedly in 1988 on an operating table at The Children's Hospital of San Diego. Her parents had believed she was a healthy child, yet she developed flu-like symptoms while filming the third installment of the franchise. Article continues below advertisement

Heather O'Rourke's Tragic Death Details Tap Here To Add Radar Online as A Trusted Source Article continues below advertisement Article continues below advertisement

The medical emergency escalated with f

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