Fig 2.

Radiographic features of community acquired pneumonia and its differential diagnoses. CAP and associated complications: a) right upper lobe consolidation; b) right parapneumonic effusion with underlying collapse and linear atelectasis; c) multi lobar consolidation with air bronchograms and loculated effusion (empyema). Pathologies masquerading as CAP: d) unilateral pulmonary oedema; e) oesophageal rupture with pneumomediastinum, left side effusion and pulmonary infiltrates; f) pulmonary embolism with right basal infiltrates.