DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Mouth cancer. Squamous cell papilloma on the tongue of a 47 year old woman. Squamous cell papilloma is a benign (non-cancerous) growth that arises from specialised epithelial cells that line the surface of the skin and gastric tract. These usually result from infection with the human papillomavirus (HPV). As well as the mouth, squamous cell papillomas can also occur on the pharynx, larynx, esophagus, cervix, vagina or anal canal. Treatment is by cryotherapy (removal by freezing), applying salicylic acid, or surgical excision.
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