skin tumour

Hidradenoma

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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Poroma

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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Syringoma

What is a syringoma? Syringoma is a non-cancerous type of skin tumour. The tumour develops from sweat glands normally found in the skin. Most patients are between 60 and 80 years old. Where are syringomas found? Most syringomas are found on the face, especially on the eyelids or around the eyes. Multiple syringomas may be …
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Dermal nevus

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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Compound nevus

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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Spitz nevus

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)

Dermatofibrosarcoma protuberans (DFSP) is a rare type of skin cancer. It starts in the connective tissue, which is the tissue that provides support and structure to the skin. DFSP usually appears as a slow-growing bump on the skin that can feel firm. It most often develops on the trunk, arms, or legs but can occur …
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Seborrheic keratosis

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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Sebaceous carcinoma

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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Trichilemmal cyst

What is a trichilemmal cyst? A trichilemmal cyst is a non-cancerous growth that starts from a hair follicle in the skin. They are very common and most start on the scalp where they look like a smooth, round bump on the skin. Trichilemmal cysts range in size from a few millimeters to several centimeters. Another …
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