Correlation between clinical , ultrasonographical, neurophysiological and histopathological findings in muscle diseases of different etiologies.

Inclusion Criteria:

1. Muscle diseases of different etiologies.
2. Any age.

Exclusion Criteria:

1. Patient refuse to participate.
2. The anatomy is altered due to severe trauma, tumor , or surgery.
3. Severe deformity preventing examination.

Any patients with muscle disease of different etiologies aged from 18 years to 75 years, of both sex