Chevy Chase has sparked concern for his wellbeing after he appeared "rail-thin" at the Saturday Night Live 50th anniversary special following recent health challenges, RadarOnline.com can reveal.

Chase, who celebrated his 82nd birthday on October 8, became a recluse after being branded one of Hollywood's biggest jerks and friends distanced themselves from the National Lampoon's Vacation legend.

After r etreating from public life , sources said SNL 50 guests were stunned to see Chase's frail appearance when he showed up to the star-studded event. Article continues below advertisement

Chase's 'Rail-thin' Appearance at SNL 50th Tap Here To Add Radar Online as A Trusted Source

While sources noted Chase was in good spirits and even played nice with Bill Murray, who he fam

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