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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A dermal nevus is a non-cancerous skin tumour made up of specialized cells called melanocytes. Melanocytes produce melanin, the pigment that gives skin its colour. The term “dermal” is used because the melanocytes in a dermal nevus are located in the dermis, a layer of skin below the surface. This type of growth is commonly …
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A compound nevus is a very common non-cancerous type of skin tumour made up of cells called melanocytes. This type of growth is more common in people with light-coloured skin but can be found anywhere on the body. Another name for a compound nevus is a mole, which is a common term used to describe …
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What is a Spitz nevus? A Spitz nevus is a non-cancerous skin tumour and a type of mole. Like other types of moles, these tumours are made up of specialized cells called melanocytes that are normally found in a part of the skin called the epidermis. The nevus is named after Dr. Sophie Spitz, a …
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Dermatofibrosarcoma protuberans (DFSP) is a rare type of skin cancer that starts in the connective tissue. Connective tissue is the supportive framework that gives the skin its structure and strength. DFSP often grows slowly and usually appears as a firm bump on the skin. It most often develops on the trunk, arms, or legs, but …
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What is seborrheic keratosis? Seborrheic keratosis (SK) is a non-cancerous growth that starts from the squamous cells in the epidermis on the surface of the skin. Seborrheic keratosis is a very common condition and is seen more often as people age. What does seborrheic keratosis look like? Without a microscope, seborrheic keratosis may look like …
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What is sebaceous carcinoma? Sebaceous carcinoma is a type of skin cancer. Sebaceous carcinoma develops from specialized cells called sebocytes in the dermis and subcutaneous tissue of the skin. The cancer cells produce a fatty substance called sebum which often makes the tumour look yellow. Where in the body is sebaceous carcinoma found? One of …
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