Myopathy, Congenital, with Fiber-Type Disproportion, X-Linked, also known as cftdx, is related to myopathy, and has symptoms including facial paresis An important gene associated with Myopathy, Congenital, with Fiber-Type Disproportion, X-Linked is CFTDX (Myopathy, Congenital, With Fiber-Type Disproportion, X-Linked). Affiliated tissues include lung, and related phenotypes are ptosis and facial palsy