PseudoARDS-Effusion Pattern PseudoARDS-effusion refers to a patient with bilateral infiltrates who seems to have ARDS, but whose respiratory failure is actually due largely to effusions and adjacent atelectasis. This may closely mimic ARDS, especially among patients with an admixture of true lung infiltrates plus effusions (e.g. small pneumonia plus large effusions). Large effusions often evade detection in a semi-supine chest X-ray, due to posterior layering of fluid. #Diagnosis #Clinical #ChestCT #PseudoARDS #Comparison #True #Effusion #Pattern