Fukuyama congenital muscular dystrophy (FCMD), also known as FKTN-related Walker-Warburg Syndrome, is an extremely severe inherited disorder that affects muscle, brain, and eye development. Individuals with this disorder will typically have severe eye and brain abnormalities that are present at birth, as well as seizures and intellectual disability that develop later in infancy. It causes progressive muscle wasting and muscle weakness very early in life. Children affected with this disorder will not typically survive past age 3. Currently, there is no cure for this disorder but medical surveillance and care may help to improve some symptoms and overall condition of life. FCMD is caused by pathogenic variants in the FKTN gene.