title: [Pleural effusion in rheumatoid arthritis (R.A.). Biochemical study of the pleural fluid (author's transl)].
abstract: The diagnosis of pleural effusion in R.A. is largely done by exclusion. Histopathological data, obtained by pleural punch-biopsy, are unreliable. It is generally a serofibrinous pleural effusion. Biochemical study of the pleural fluid shows a high protein level (> 40 g/l), high latex factor (larger than or equal to 1/2560) and, predominantly, low sugar rate in pleural fluid (< 0,35 g/l) and low complement level (whole hemolytic complement C3 and C4).
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications*; D003165:Complement System Proteins / Q000032:analysis; D005260:Female; D005947:Glucose / Q000032:analysis; D006801:Humans; D007770:L-Lactate Dehydrogenase / Q000032:analysis; D008055:Lipids / Q000032:analysis; D008297:Male; D010996:Pleural Effusion / Q000032:analysis*; D010998:Pleurisy / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D012217:Rheumatoid Factor / Q000032:analysis; D005719:gamma-Globulins / Q000032:analysis
chemical_list: D008055:Lipids; D005719:gamma-Globulins; D003165:Complement System Proteins; D012217:Rheumatoid Factor; D007770:L-Lactate Dehydrogenase; D005947:Glucose
vernacular_title: Les pleurésies rhumatoïdes: intérêt de l'étude biologique du liquide pleural.