ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Coloured X-ray of the chest of a patient, showing the lungs filled with small lesions in miliary sarcoidosis, otherwise known as Besnier-Boeck-Schamann (BBS) disease. Sarcoidosis is a disease of unknown origin in which lesions (granulomas) appear especially in the lungs, liver, lymph nodes and skin.
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