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Squamous-cell carcinoma (SCC), also known as epidermoid carcinoma, comprises a number of different types of cancer that begin in squamous cells. [1] These cells form on the surface of the skin, on the lining of hollow organs in the body, and on the lining of the respiratory and digestive tracts .
Trimethylglycine is an amino acid derivative with the formula (CH 3) 3 N + CH 2 CO − 2.A colorless, water-soluble solid, it occurs in plants. [5] Trimethylglycine is a zwitterion: the molecule contains both a quaternary ammonium group and a carboxylate group.
A squamous intraepithelial lesion (SIL) is an abnormal growth of epithelial cells on the surface of the cervix, commonly called squamous cells. This condition can lead to cervical cancer , but can be diagnosed using a Pap smear or a colposcopy .
Squamous cell carcinoma of the vagina is a potentially invasive type of cancer that forms in the tissues of the vagina. Though uncommonly diagnosed, squamous cell cancer of the vagina (SCCV) is the most common type of vaginal cancer , accounting for 80-90% of cases as well as 2% of all gynecological cancers.
One in five Americans will develop skin cancer at some point of their lives. The most common form of skin cancer is basal-cell carcinoma, followed by squamous cell carcinoma. Unlike for other cancers, there exists no basal and squamous cell skin cancers registry in the United States. [75]
Cervical cancer typically develops from precancerous changes called cervical intraepithelial neoplasia over 10 to 20 years. [3] About 75% of cervical cancers are squamous cell carcinomas, 20-25% are adenocarcinoma, 3% are adenosquamous carcinomas and less than 1% are small cell neuroendocrine tumors of the cervix. [19]
It resembles small-cell cancer of the lungs and accounts for less than 3% of all cervical cancers. Like small-cell cancer in the lungs, the lymph nodes play a major role in spreading the cancer throughout the body. SCC begins in the inner part of the cervix and is very hard to diagnose.
The diagnosis is based on tissue examination, e.g. biopsy. [citation needed]Under the microscope, glassy cell carcinoma tumours are composed of cells with a glass-like cytoplasm, typically associated with an inflammatory infiltrate abundant in eosinophils and very mitotically active.