precancerous

Squamous dysplasia

Squamous dysplasia is a precancerous condition, which means the affected cells are not cancerous but have the potential to develop into cancer over time if left untreated. The term describes changes in squamous cells, which are flat cells that cover the surface of certain tissues in the body. Under the microscope, these cells look abnormal, and …
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Low grade squamous dysplasia of the esophagus

Low grade squamous dysplasia of the esophagus is a precancerous condition in which the cells lining the inside of the esophagus show abnormal growth. These cells are called squamous cells, and they normally form a thin, protective layer called the squamous epithelium. In low grade squamous dysplasia, the squamous cells begin to grow and look …
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HPV associated dysplasia of the larynx

Background: HPV associated dysplasia of the larynx is a precancerous condition in which the squamous cells that cover the inside surface of the larynx begin to show abnormal growth due to infection with the human papillomavirus (HPV). If not treated effectively, this condition can progress to a type of laryngeal cancer called squamous cell carcinoma. …
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Intestinal type adenoma of the stomach

What is an intestinal type adenoma of the stomach? An intestinal type adenoma is a non-cancerous growth that starts from cells on the inside surface of the stomach. It is the third most common type of polyp in the stomach after hyperplastic polyps and fundic gland polyps. Where in the stomach are intestinal type adenomas …
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Vulvar intraepithelial neoplasia (VIN)

What is vulvar intraepithelial neoplasia? Vulvar intraepithelial neoplasia (VIN) is a precancerous growth arising from the cells on the surface of the vulva. If left untreated, VIN can turn into a type of vulvar cancer called squamous cell carcinoma over time. Another name for VIN is squamous intraepithelial lesion (SIL). Where does vulvar intraepithelial neoplasia …
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Low grade squamous intraepithelial lesion of the anal canal

Low grade squamous intraepithelial lesion (LSIL) in the anal canal and anus is an abnormal growth caused by infection with human papillomavirus (HPV). The abnormal growth seen in LSIL is an example of dysplasia. Although the overall risk is low, LSIL is considered a precancerous condition because it can turn into a type of anal cancer …
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Anal intraepithelial neoplasia (AIN)

What is anal intraepithelial neoplasia? Anal intraepithelial neoplasia (AIN) is a precancerous growth made up of abnormal squamous cells in the anus or anal canal. If left untreated, AIN can turn into a type of anal cancer called squamous cell carcinoma over time. Another name for AIN is squamous intraepithelial lesion (SIL). Where does anal …
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Non-invasive

What does non-invasive mean in a pathology report? In pathology, non-invasive is used to describe a disease (typically a tumour) that remains localized and has not spread into the surrounding tissues or organs. All types of benign (noncancerous) tumours are by definition non-invasive. However, some types of early-stage malignant (cancerous) tumours are also considered non-invasive …
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Gastric dysplasia

What does gastric dysplasia mean? Gastric dysplasia is a precancerous change that can turn into a type of stomach cancer called adenocarcinoma over time. Another name for this condition is glandular intraepithelial neoplasia. Where in the stomach does dysplasia start? Gastric dysplasia in the stomach starts from specialized epithelial cells that cover the inside surface …
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Squamous dysplasia

What is squamous dysplasia? Squamous dysplasia is a precancerous change involving an area of the body covered by squamous cells. If left untreated, squamous dysplasia can turn into a type of cancer called squamous cell carcinoma over time. What causes squamous dysplasia? The cause of squamous dysplasia depends on where in the body the disease …
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