Angelina Jolie was photographed in Venice, Italy Wednesday afternoon with two protruding muscles where her chin meets her neck.
The photo was not altered, as Jolie, 34, sported the same facial protrusion at the BAFTA awards in February 2009 (see bottom photo, at left).
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UsMagazine.com consulted a number of plastic surgeons to find out what's really going on because, as Beverly Hills-based Dr. Gabriel Chiu tells Us, "it's unlikely that the banding can occur from strong facial muscles alone."
Dr. Elie Levine, who has not treated Jolie, says that it appears she's "received Botox to her face and likely her neck" because she shows "no wrinkles along the sides of her eyes (the crow's feet) despite that very large smile... and her forehead is smooth."
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If she had a mini-facelift, Dr. Andrew Jacono says the skin was not lifted far enough back.
"Think of it like making your bed," he says. "If you don't pull the sheets tight enough, they'll appear wrinkled and bunched at the corners."
But Dr. Lyle M. Back believes Jolie has not received any cosmetic surgery. He credits the protrusion to Jolie's "very thinned out skin -- tented and pulled over the edge of the angle of her jaw" as the result of her having less than 10 percent body fat.
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"Body builders love to employ a variety of techniques to get their skin looking this thin so that the judges can actually see the striations and fiber lines in their muscles through their skin," he adds.