SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Coloured Computed Tomography (CT) scan in axial section through the chest of a female patient aged 58, showing major pleural effusion, an accumulation of fluid in the spaces around the lungs. The lung fields appear dark with white specks, with the rounded heart at upper centre. Pleural fluid is seen at lower left and right (light blue) outside each lung. This is due to heart failure (cardiac insufficiency).
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