29.7 MB (4.1 MB compressed)
2903 x 3577 pixels
24.6 x 30.2 cm ⏐ 9.7 x 11.9 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Lobar pneumonia. Coloured computer-enhanced chest X-ray showing lobar pneumonia in a patient's lung. The affected area of congestion appears in the lower lobe (orange) of the lung at right, above the pink heart. Normal lung tissue is blue/white. Bones of the neck and shoulders are yellow. Lobar pneumonia is caused by Streptococcus pneumoniae bacteria and initially affects a single lobe of one of the lungs. Alveoli (air sacs) in the lobe become blocked with pus, preventing air flow, causing tissue to solidify. Symptoms include fever, painful breathing and a cough that produces rust-coloured sputum. In most cases antibiotic drugs help the patient to make a full recovery.
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