Muscle Weakness due to muscle itself

Common Presentation

Common Investigation

Subclasses

Congenital? Etiology Risk Factors Presentation Treatment
Acquired , Other Thyroid S/S (e.g. heat and cold intolerence, goiter, weight gain/loss) Treat underlying condition
Acquired , Long course of tm and higher dose (for steroid use) Statin/CS: + Myalgia Stop the medication
Inherited Genetic, X-linked recessive 2-5 yr old VERY slowly progressive (yrs);
Acquired Other Autoimmune diseases Dermatomyotitis: , ,