Zygomatic frontal subluxation is one of the clinical signs of crossed lateral atrophy. Crossed lateral atrophy is extremely rare in clinical practice. The clinical manifestations of the disease are not difficult to examine. 1. It occurs in adolescents before 20 years of age occasionally within 1 year of age, and is more common in women. The onset of insidious, slowly progressing snipe, the atrophy process can start in any part of the face more than one side of the cheek forehead, etc. to the upper orbital zygomatic more common starting point is often striped, slightly parallel to the midline; dry skin, wrinkled hair loss health search, known as “knife marks” lesions slowly develop to half the face health search serious forehead orbital The tissue atrophy of the forehead, ear, cheek, tongue, gums, etc. can occasionally spread to the opposite side of the face skull neck, shoulders, or involve other parts of the body part of the cheek pain or sensory disorders onset of a few manifestations of seizures. 2, the disease area is limited subcutaneous fat and connective tissue atrophy skin atrophy, wrinkling, often accompanied by hair loss, pigmentation health search, white spots, capillary dilation, increased or reduced sweat secretion, reduced saliva secretion, cheekbone forehead bone and other sunken and normal skin has a clear line of demarcation. 3, some cases and present pupillary changes, iris pigment reduction, eye sunken or protruding eye inflammation secondary glaucoma facial pain or mild diseased side hyperalgesia, facial muscle twitching, and endocrine disorders, etc., can progress with the course of the disease face lateral atrophy and focal fatty atrophy health search is also often accompanied by skin sclerosis of a part of the body. When the lesion side of the limb and trunk are involved, the limb becomes thinner and shorter, the breast becomes smaller, the axillary hair becomes sparse organs become smaller, but the muscle strength is normal. Atrophy with a fire can net invades the contralateral limb is called crossed lateral atrophy.