Myopathic changes are weakness or biopsy results that suggest a muscle disorder. The muscle disorder can be inherited, such as muscular dystrophy , or acquired, such as alcoholic myopathy.
The main symptom is weakness.
Other symptoms include cramps and stiffness.
An electromyogram can confirm a myopathy.
Sometimes, a muscle biopsy is done. This allows a tissue sample to be examined under a microscope and may confirm a specific disease.
Treatment depends on the cause. It usually includes:
Chinnery PF. Muscle diseases. In: Goldman L, Schafer AI, eds. . 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 429.
Superficial anterior muscles