title: Pleural effusion. How to avoid a diagnostic stalemate.
mesh_terms: D001706:Biopsy; D002283:Carcinoma, Bronchogenic / Q000150:complications; D006333:Heart Failure / Q000150:complications; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008223:Lymphoma / Q000150:complications; D009404:Nephrotic Syndrome / Q000150:complications; D010994:Pleura / Q000378:metabolism; D010995:Pleural Diseases / Q000175:diagnosis / Q000209:etiology; D010996:Pleural Effusion / Q000378:metabolism; D010997:Pleural Neoplasms / Q000150:complications; D011379:Prognosis; D014391:Tuberculosis, Miliary / Q000150:complications