Squamous cell carcinoma in situ is a non-invasive type of cancer made up of squamous cells. It is called non-invasive because the abnormal cells have not spread into any of the surrounding tissues. If left untreated, this condition can turn into a type of invasive cancer called squamous cell carcinoma. Squamous cell carcinoma in situ …
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Squamous cell carcinoma in situ of the larynx is a very early, non-invasive form of cancer in the lining of the voice box. The lining is made of squamous cells, flat cells that sit in a thin surface layer called the epithelium. In carcinoma in situ, these cells look severely abnormal throughout the full thickness …
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Squamous cell carcinoma in situ, also called Bowen’s disease, is an early form of skin cancer. It begins in squamous cells, which are flat cells that make up the outer layer of the skin, called the epidermis. In this condition, the squamous cells have become cancerous, but they are still confined to the epidermis. The …
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Urothelial carcinoma in situ (CIS) is a type of non-invasive cancer that starts in the lining of the urinary tract. The urinary tract includes the bladder, kidneys, ureters, and urethra. “In situ” means that the cancer cells are only found in the urothelium (inner lining) and have not spread to deeper tissues. However, if not …
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Squamous cell carcinoma in situ of the oral cavity is a very early, non-invasive form of cancer in the lining of the mouth. The lining is made of flat cells called squamous cells, which sit in a thin surface layer called the epithelium. In squamous cell carcinoma in situ, these cells look severely abnormal throughout …
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Carcinoma in situ (CIS) is an early form of cancer in which abnormal cells are confined to the epithelium, the layer of tissue where they first developed, and have not yet spread into the surrounding tissue. “In situ” is Latin for “in its original place.” Because the cells have not broken through the basement membrane — the …
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