title: Hypocomplementemic ear effusion in relapsing polychondritis.
abstract: In a case of relapsing polychondritis it was possible to aspirate a collection of subcutaneous fluid from the patient's involved ear. A determination of total hemolytic complement activity of this fluid was low, suggesting that activation of the complement system may have occurred in the course of the patient's disease and might be related to the pathogenesis of this disorder.
mesh_terms: D003165:Complement System Proteins / Q000378:metabolism*; D004427:Ear Diseases / Q000276:immunology*; D005122:Exudates and Transudates / Q000276:immunology*; D006461:Hemolysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011081:Polychondritis, Relapsing / Q000150:complications / Q000209:etiology / Q000276:immunology*
chemical_list: D003165:Complement System Proteins