Keratinizing squamous cell carcinoma (KSCC) is a type of cancer that begins in squamous cells, the flat cells lining the inner surfaces of the nasal cavity and paranasal sinuses. The nasal cavity is the hollow space inside the nose that warms, moistens, and filters the air we breathe. The paranasal sinuses, which include the maxillary, frontal, sphenoid, …
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Nonkeratinizing squamous cell carcinoma (NKSCC) is a type of cancer that begins in squamous cells, the flat cells lining the inner surfaces of the nasal cavity and paranasal sinuses. The nasal cavity is the hollow space inside the nose that warms, moistens, and filters the air we breathe. The paranasal sinuses, which include the maxillary, frontal, sphenoid, …
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An oncocytoma of the salivary gland is a rare, benign (non-cancerous) tumor that arises from the salivary glands. The salivary glands produce saliva, which is important for digestion and maintaining oral health. There are three major pairs of salivary glands: the parotid glands, the submandibular glands, and the sublingual glands, along with hundreds of minor …
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Basal cell adenoma is a benign (non-cancerous) tumour of the salivary gland. It is made up of small cells that look similar to normal basal cells, which are found at the base of the glands in the salivary system. Although basal cell adenoma is rare, it is most commonly found in the parotid gland, the …
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Sclerosing adenosis is a non-cancerous growth made up of small glands in the breast. The glands are surrounded by a type of connective tissue that resembles a scar. When large enough, this type of growth can be seen in imaging studies such as mammography, and a biopsy may be performed to rule out cancer. What …
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Endometrial serous carcinoma is an aggressive type of cancer that starts in the endometrium, the inner lining of the uterus. It is considered a high-grade tumour, meaning it has a higher chance of spreading beyond the uterus compared to some other types of endometrial cancer. Unlike endometrial endometrioid carcinoma, which is often linked to excess …
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Chondroblastic osteosarcoma is a type of bone cancer. This type of cancer can start in any bone in the body, however, most are found in the long bones of the arms and legs. The jaws are also commonly involved. This type of cancer affects both children and older adults. The term “chondroblastic” means that some …
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Background: Fibrous histiocytoma is a common benign (non-cancerous) skin tumour. It is made up of a combination of fibroblastic cells, macrophages, and collagen, a type of connective tissue. The tumour develops in a layer of skin called the dermis. Another name for a fibrous histiocytoma is dermatofibroma. What are the symptoms of a fibrous …
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High grade prostatic intraepithelial neoplasia (HGPIN) is a condition in which the cells that line the ducts and glands of the prostate gland show abnormal changes. These changes are not cancerous, but they are considered precancerous, meaning they may develop into prostate cancer over time. HGPIN is often detected in prostate biopsies, which are usually …
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Angiomyolipoma is a benign (noncancerous) tumor, most often found in the kidney. It is composed of three types of tissue: fat, smooth muscle, and abnormally shaped blood vessels. These three parts give the tumor its name, from angio (blood vessels), myo (muscle), and lipo (fat). It is the most common noncancerous tumor of the kidney. …
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