A vocal cord polyp (also known as a vocal cord nodule) is a non-cancerous growth that develops in a part of the larynx called the vocal cords. Most polyps are caused by an injury that damages the vocal cords. Excessive shouting, recent surgery, and prior infection of the larynx are common causes. What are the …
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Cylindroma is a non-cancerous type of skin tumour that develops from sweat glands normally found in the skin. People with Brooke–Spiegler syndrome (BSS) commonly develop multiple cylindromas. This syndrome is associated with an alteration in the gene CLYD. Where are cylindromas found? Cylindromas are typically found on the head and neck, but the upper chest …
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What is a spiradenoma? Spiradenoma is a non-cancerous type of skin tumour. The tumour develops from sweat glands normally found in the skin. People with Brooke–Spiegler syndrome commonly develop multiple spiradenomas. This syndrome is associated with an alteration in the gene CLYD. Where are spiradenomas found? Spiradenomas are typically found on the face, upper chest, …
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A hidradenoma is a non-cancerous skin tumour arising from the sweat glands within the skin. These tumours are relatively rare and can develop anywhere on the body. They are most commonly found on the trunk (chest, back, and abdomen) and extremities (arms and legs). Hidradenomas are typically slow-growing and present as small, firm, painless lumps …
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What is a poroma? Poroma is a non-cancerous type of skin tumour. The tumour develops from sweat glands normally found in the skin. Where are poromas found? Poromas are commonly found on the palms of the hands, soles of the feet, and extremities (arms and legs), however, other sites can also be involved. How do …
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A syringoma is a benign (noncancerous) tumor that develops from the ducts of sweat glands in the skin. Sweat glands help regulate body temperature by producing sweat. Syringomas are harmless and do not spread to other parts of the body. They typically grow slowly and remain small. Although syringomas can occur at any age, they …
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Intramucosal adenocarcinoma of the esophagus is an early-stage cancer that arises from gland-forming cells lining the esophagus. The esophagus is the muscular tube that carries food from the mouth to the stomach. Its innermost layer is called the mucosa. When cancer cells are described as intramucosal, it means the tumor is confined to this inner …
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Hyalinizing clear cell carcinoma (HCCC) is a slow-growing type of head and neck cancer. A genetic alteration involving the EWSR1 gene is found in most tumours. This type of cancer is typically found in minor salivary glands in the lip, tongue, buccal mucosa (inner cheeks), gingiva (gums), hard and soft palate (the roof of the …
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Minimally invasive adenocarcinoma (MIA) is an early type of lung cancer. It is called “minimally invasive” because the tumour cells have just started to spread into the lung tissue around the small air spaces, called alveoli. To be classified as minimally invasive, the tumour must be smaller than 3.0 centimeters, and the area where the …
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Adenocarcinoma in situ (AIS) is a type of early-stage, non-invasive lung cancer. The term non-invasive refers to the fact that the cancer cells have not spread beyond the inner lining of the small air sacs (alveoli) within the lungs. To be classified as adenocarcinoma in situ, the tumour must be no larger than 3.0 centimeters …
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