DAVID M. MARTIN, MD / SCIENCE PHOTO LIBRARY DAVID M. MARTIN, MD / SCIENCE PHOTO LIBRARY
Oesophagus tumour. Endoscope view of the mid-part of the oesophagus (gullet) of a 64 year-old male patient. A benign (non-malignant) tumour (neoplasm) of the smooth muscle fibres, known as a leiomyoma, is seen at lower left. Treatment is by surgical excision.
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