title: Immune complex myositis associated with viral hepatitis.
abstract: Sarcolemmal osmiophilic deposits were demonstrated by electron microscopy in the striated muscle of a patient who developed viral hepatitis associated myositis. HBsAg, IgG, and C3 were found in the same location, suggesting that the deposits represent immune complexes and the primary cause of myositis.
mesh_terms: D000328:Adult; D003176:Complement C3 / Q000032:analysis; D006509:Hepatitis B / Q000150:complications*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D008297:Male; D009132:Muscles / Q000648:ultrastructure*; D009220:Myositis / Q000150:complications / Q000276:immunology / Q000473:pathology*
chemical_list: D003176:Complement C3; D006514:Hepatitis B Surface Antigens; D007074:Immunoglobulin G