Adult respiratory distress syndrome (ARDS) is a form of pulmonary oedema. Diagnosis is based on impaired diffusion capacity, reduced compliance of the lung and typical radiological findings. Chest CT features are bilateral consolidation and ground-glass attenuation [23] . Other findings such as reticular and linear opacities can also be seen. Histological features include oedema of the alveoli and perivascular spaces with filling of the alveoli by a protein-rich fluid [22, 24, 25] . The progress to architectural distortion and honeycombing with thickening of the inter-and intralobular septa is responsible for the linear accentuation.