Hyperadrenocorticoid (Cushing) myopathy, stiff gait, dog

An approximately 10-year-old neutered male mixed-breed dog with a progressively stiff gait in all limbs while being treated for hyperadrenocorticism. A presumptive diagnosis of hyperadrenocorticoid myopathy/myotonia was made.

Courtesy of Baye Williamson, DVM, DACVIM (Neurology).