JOSE CALVO / SCIENCE PHOTO LIBRARY JOSE CALVO / SCIENCE PHOTO LIBRARY
Papilloma of the larynx, light micrograph. This is a benign epithelial tumor frequently caused by human papillomavirus. It appears as a proliferative well-differentiated squamous epithelium overlying fibrovascular cores. Magnification: x18 when printed at 10 centimetres wide.
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