precancerous

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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Adenocarcinoma in situ (AIS)

What is adenocarcinoma in situ? Adenocarcinoma in situ (AIS) is a non-invasive type of cancer. It is called non-invasive because the cancer cells have not spread into surrounding tissues. If left untreated, it can turn into invasive adenocarcinoma. Is adenocarcinoma in situ a benign or malignant disease? AIS is considered a malignant (cancerous) disease. However, …
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Adenocarcinoma in situ of the cervix

What is adenocarcinoma in situ of the cervix? Adenocarcinoma in situ (AIS) is a precancerous disease in the cervix. The disease starts from glands in a part of the cervix called the endocervix. If not treated, AIS can turn into a type of cervical cancer called endocervical adenocarcinoma. Is adenocarcinoma in situ a type of …
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High grade dysplasia of the larynx

High grade dysplasia of the larynx (also called severe keratinizing squamous dysplasia) is a precancerous condition. If not treated, this condition can evolve into a type of laryngeal cancer called squamous cell carcinoma. This condition typically affects adults over the age of 40 years. The larynx The larynx is a structure located in the upper …
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