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Rare condition causes young girl to gain massive weight after brain surgery

Alexis Shapiro, 12, suffers a pre-teen moment while at Outback Steakhouse with her family for her birthday dinner. Alexis had a brain tumor removed three years ago, when she was a normal-sized 9-year-old. Ever since the surgery, the fourth-grader has gained an average of 2 pounds a week -- with no end in sight.
Alexis Shapiro, 12, suffers a pre-teen moment while at Outback Steakhouse with her family for her birthday dinner. Alexis had a brain tumor removed three years ago, when she was a normal-sized 9-year-old. Ever since the surgery, the fourth-grader has gained an average of 2 pounds a week -- with no end in sight.Ilana Panich-linsman / for NBC News

JoNel Aleccia, NBC News

Surgery to remove a brain tumor two years ago has left a 12-year-old Texas girl with a heartbreaking condition that makes her gain massive amounts of weight — even though her body thinks it’s starving.

Doctors say a gastric bypass operation is the only thing that can help Alexis Shapiro, who is 4-foot-7 and weighs 198 pounds. But the U.S. military, which provides her family’s health insurance, says it won’t pay for the $50,000 weight-loss procedure because she’s too young. Read full story

Jennifer Shapiro helps her daughter Alexis decorate her very own Christmas tree, a gift she requested and received for her 12th birthday.
Jennifer Shapiro helps her daughter Alexis decorate her very own Christmas tree, a gift she requested and received for her 12th birthday.Ilana Panich-linsman / for NBC News
Photos of Alexis and her siblings, Kayley and Ethan, prior to Alexis' surgery in 2011.
Photos of Alexis and her siblings, Kayley and Ethan, prior to Alexis' surgery in 2011.Ilana Panich-linsman / for NBC News
Alexis at her home.
Alexis at her home.Ilana Panich-linsman / for NBC News