Myasthenia gravis is a clinical manifestation, not a disease diagnosis, with different etiologies and different manifestations, which are commonly characterized by myasthenia gravis.
1. Myasthenia gravis: an autoimmune disease caused by autoantibody-mediated acquired nerve-muscle junction transmission disorders. Early manifestations of the disease mainly involve extraocular muscles, limb muscles and pharyngeal muscles, which are characterized by ptosis, diplopia, dysphagia, mild weakness of limbs and other symptoms.
2. Amyotrophic lateral sclerosis: the common first symptom of one or both sides of the finger activity clumsiness, weakness, followed by the emergence of small muscle atrophy of the hand, to the large and small interosseous muscle, interosseous muscle, earthworm muscle is obvious, hands can be eagle-claw shape, and gradually extend to the forearm, the upper arm and scapular girdle muscle group.
3. Ankylosing muscular dystrophy: muscle weakness and muscle atrophy often first involved in the hand and forearm muscles, and then involved in the head and face muscles, especially temporal muscle and biting muscle atrophy is the most obvious, the patient’s face is long and thin, zygomatic bone bulging, “axe-shaped face”, neck thin and slightly forward flexion, and become a “goose neck”. The neck is thin and slightly flexed forward, resulting in a “goose neck”. The respiratory muscles are also often involved, causing a decrease in pulmonary ventilation.
When the above symptoms of myasthenia gravis appear, patients should go to the hospital in time, after a clear diagnosis and standardized treatment under the guidance of the doctor.