散发性包涵体肌炎 (ｓｐｏｒａｄｉｃｉｎｃｌｕｓｉｏｎｂｏｄｙｍｙｏｓｉｔｉｓ,ｓＩＢＭ)是一种好发于中、老年人 ,以缓慢进行性肌无力和肌萎缩为主要临床特点的炎性肌肉疾病[1 ,2 ] ,常被误诊为激素不敏感的多发性肌炎。目前世界各国对包涵体肌炎有不同的诊断标准。与国外 Sporadic incisional body myositis (sIBM) is a type of inflammatory muscle disease that predisposes middle-aged and elderly people to slow progressive muscle weakness and muscular atrophy [1, 2] and is often misdiagnosed as Hormone-insensitive polymyositis. At present, all countries in the world have different diagnostic criteria for inclusion body myositis. With foreign countries