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American boy with craniodiaphyseal dysplasia (–)

"Roy Dennis" redirects here. For the British conservationist, see Roy Dennis (conservationist). For the American football player, see Roy Dennis (American football).

Roy Lee "Rocky" Dennis (December 4, &#; October 4, ) was an American teenager who had craniodiaphyseal dysplasia, an extremely rare sclerotic bone disorder.

The condition usually results in neurological disorders and death during childhood or teenage years.

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His life was the basis for the drama film Mask.

Early life and diagnosis

Rocky Dennis was born in Glendora, California, to Florence "Rusty" Tullis and Roy Dennis in When he was very young, Dennis frequently had ear and sinus infections.

He underwent a tonsillectomy at age two, at which time doctors detected abnormalities in his x-rays. Over the next year, he visited doctors at University of California, Los Angeles (UCLA)'s medical center multiple times a week, culminating in a diagnosis