|Craniodiaphyseal dysplasia has an autosomal recessive pattern of inheritance|
Craniodiaphyseal dysplasia (also known as CDD or lionitis) is an extremely rare autosomal recessive bone disorder that causes calcium to build up in the skull, disfiguring the facial features and reducing life expectancy.
The underlying genetics are uncertain.
Among the medical signs are dacryocystitis, seizures, intellectual disability, and paralysis, each of which is a complication resulting from the diminutive foramina. A common sign reported as a result of the disease has been a difference of the size of the eyes.
In the anthology television series American Horror Story season 1 (fan dubbed Murder House), Beauregard, the brother of Tate and Adelaide, suffered from lionitis.