What is a typical carcinoid tumour of the lung? A typical carcinoid tumour is a slow-growing type of lung cancer made up of neuroendocrine cells. In the lung, this tumour starts from the neuroendocrine cells normally found in the walls of the airways and is often located in the central part of the lung near …
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What is small cell carcinoma of the lung? Small cell carcinoma is a type of lung cancer. It is made up of neuroendocrine cells that are normally found in the lungs. Small cell carcinoma is considered a very aggressive type of cancer and the tumour cells have often spread to other parts of the body …
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Ewing sarcoma is a rare and aggressive type of cancer that most often affects bones and, less commonly, the soft tissues. It belongs to a group of tumours called sarcomas, which arise from connective tissues such as bone, muscle, or soft tissue. Ewing sarcoma is made up of very immature-appearing cells and is driven by …
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High grade squamous intraepithelial lesion (HSIL) is a precancerous disease caused by human papillomavirus (HPV). It is composed of abnormal squamous cells that have been infected and transformed by the virus. Squamous cells are found in a thin layer of tissue called the epithelium which covers the inside surface of the anus and anal canal. …
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What is non-keratinizing squamous cell carcinoma of the oropharynx? Non-keratinizing squamous cell carcinoma (NKSCC) 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. This type of cancer quickly spreads to lymph nodes especially those in the neck. For …
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Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is a noncancerous thyroid tumour that grows slowly and has an excellent outcome after surgery. It develops from follicular cells, the normal cells of the thyroid gland that produce thyroid hormone. Although NIFTP cells can look similar under the microscope to cells seen in papillary thyroid …
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Squamous cell carcinoma is a type of cancer that starts in the anus or anal canal, which is the opening at the end of the digestive tract. This cancer develops from squamous cells, which are flat cells that normally line the surface of the anal canal. Anal squamous cell carcinoma usually grows slowly at first …
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Keratinizing squamous dysplasia of the larynx is a precancerous condition affecting the tissue on the inner surface of the larynx. This condition is considered a precancerous disease because it can, over time, turn into a type of laryngeal cancer called squamous cell carcinoma. Pathologists divide keratinizing squamous dysplasia into three grades – mild, moderate, and …
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Mucinous adenocarcinoma is a distinct subtype of colorectal cancer. It is called “mucinous” because at least 50% of the tumor is composed of a gel-like substance called mucin. Mucin is normally produced in small amounts by the cells lining the inside of the colon, but in mucinous adenocarcinoma, cancer cells produce it in large quantities. …
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Collagenous colitis is a non-cancerous condition in which inflammation develops in the lining of the colon. It belongs to a group of conditions called microscopic colitis, named because the changes that cause symptoms can only be seen when tissue is examined under a microscope — the colon looks entirely normal during a colonoscopy. The other …
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