Usefulness of pleural effusion antinuclear antibodies in the diagnosis of lupus pleuritis
C Toworakul, N Kasitanon, W Sukitawut, R Wichinun and W Louthrenoo We performed this study to determine sensitivity and specificity of pleural effusion antinuclear antibodies (ANA) at a titer of 1 : 160, and the ratio of pleural effusion to serum ANA of 1, to distinguish between pleural fluid from lupus pleuritis and other causes. A prospective study of [...]