title: A case of chronic active hepatitis with some unusual features.
mesh_terms: D001168:Arthritis / Q000209:etiology*; D002908:Chronic Disease; D005260:Female; D006505:Hepatitis / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D007075:Immunoglobulin M; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000209:etiology*
chemical_list: D007075:Immunoglobulin M