JAMES STEVENSON / SCIENCE PHOTO LIBRARY JAMES STEVENSON / SCIENCE PHOTO LIBRARY
Lung cancer: post-mortem specimen of a human lung revealing a cancerous tumour of the upper lobe. The tumour appears as the black & white mouldy area towards the top of the lung. A history of heavy cigarette smoking is suggested by the appearance of this lung; the entire organ is permeated by black, tarry deposits.
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