HPV

Koilocytes

What are koilocytes? Koilocytes are a type of cell called squamous cells that have been infected by human papillomavirus (HPV). Koilocytes are commonly seen in conditions caused by HPV including low grade squamous intraepithelial lesion (LSIL) and high grade squamous intraepithelial lesion (HSIL). What do koilocytes look like under the microscope? When examined under the microscope …
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Low grade squamous intraepithelial lesion (LSIL) of the vulva

What is low grade squamous intraepithelial lesion (LSIL) of the vulva? Low grade squamous intraepithelial lesion (LSIL) is a non-cancerous, sexually transmitted disease caused by infection with human papillomavirus (HPV). This condition may affect both women and men. In addition to the vulva, LSIL can also affect the cervix and vagina. In both women and men, …
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Squamous papilloma

About this article: This article was created by doctors to help you read and understand your pathology report for squamous papilloma. If you have any questions about this article or your pathology report, please contact us. What is a squamous papilloma? Squamous papilloma is a non-cancerous growth made up of specialized squamous cells that connect …
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Cervical intraepithelial neoplasia (CIN)

What is cervical intraepithelial neoplasia? Cervical intraepithelial neoplasia (CIN) is a pre-cancerous, sexually transmitted disease caused by infection with a virus called human papillomavirus (HPV). It is called pre-cancerous because over time it can change into a type of cervical cancer called squamous cell carcinoma. CIN is divided into three levels – CIN1, CIN2, and …
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High grade squamous intraepithelial lesion (HSIL)

What is a high-grade squamous intraepithelial lesion? High-grade squamous intraepithelial lesion (HSIL) is a pre-cancerous, sexually transmitted disease caused by infection with a virus called human papillomavirus (HPV). This condition may affect both women and men. In women, HSIL commonly involves the cervix, vulva, or vagina. In both women and men, LSIL may also involve …
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Verruca vulgaris

About this article: This article was created by doctors to help you read and understand your pathology report for verruca vulgaris. If you have any questions about this article or your pathology report, please contact us. What is verruca vulgaris? Verruca vulgaris is a non-cancerous growth caused by infection with human papillomavirus (HPV). The growth …
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High grade squamous intraepithelial lesion (HSIL) of the anal canal

What is a high grade squamous intraepithelial lesion of the anal canal?  High grade squamous intraepithelial lesion (HSIL) is a pre-cancerous disease that starts from specialized squamous cells that cover the inside of the anal canal. HSIL is called a pre-cancerous disease because over time it can turn into a type of cancer called squamous cell …
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Non-keratinizing squamous cell carcinoma of the oropharynx

What is non-keratinizing squamous cell carcinoma? Non-keratinizing squamous cell carcinoma is a type of oropharyngeal cancer. The oropharynx is an area of the throat that includes the tonsils, base of the tongue, uvula, and soft palate. Most non-keratinizing squamous cell carcinomas in the oropharynx are caused by human papillomavirus (HPV). This type of cancer quickly …
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Squamous cell carcinoma of the anal canal

What is squamous cell carcinoma of the anal canal? Squamous cell carcinoma is a type of anal cancer. The anal canal is located at the end of the digestive tract between the rectum and the anus. Squamous cell carcinoma is the most common type of cancer in the anal canal. What causes squamous cell carcinoma …
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ASC-H of the cervix

What does ASC-H mean? ASC-H stands for atypical squamous cells, cannot rule out high-grade squamous intraepithelial lesion (HSIL). This result means that your pathologist saw abnormal-looking squamous cells in your Pap test.  These abnormal cells seen in ASC-H raise the possibility that a more serious pre-cancerous disease called high-grade squamous intraepithelial lesion (HSIL) may be …
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