title: Myalgia cruris epidemica (benign acute childhood myositis) associated with a Mycoplasma pneumonia infection.
abstract: We report the case of a 6-year-old boy who presented with difficulty ambulating and an elevated creatinine phosphokinase level following an upper respiratory tract infection. Crural myositis was diagnosed; convalescent serum was negative for viruses, but demonstrated significant titers to Mycoplasma pneumoniae. Benign acute crural myositis has not heretofore been associated with Mycoplasmal infection.
mesh_terms: D000208:Acute Disease; D002648:Child; D006801:Humans; D007866:Leg; D008297:Male; D009220:Myositis / Q000209:etiology*; D011019:Pneumonia, Mycoplasma / Q000150:complications* / Q000175:diagnosis; D012698:Serologic Tests