Etymed
myositis
Definition
Inflammation of muscle tissue
Clinical context
A 28-year-old woman presents with progressive weakness and pain in her proximal muscles over several weeks. She reports difficulty climbing stairs and rising from a seated position. Physical examination reveals tenderness and weakness in the shoulder and hip girdle muscles. Laboratory studies show elevated creatine kinase levels.
Mnemonic
MYO = Muscle, SIT = Inflammation, IS = Inflammation of muscle tissue