What does hypergranulosis mean? Hypergranulosis means an increased number of cells in the granular layer of the skin. The granular layer is found near the surface in a part of the skin called the epidermis. Hypergranulosis is a non-cancerous change. The granular layer is a normal part of the skin and is usually 1 to …
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In pathology, acanthosis (or acanthotic) describes an increased number of specialized squamous cells on the surface of a tissue. The increased number of squamous cells causes the tissue to look thicker than normal when examined under the microscope. This condition can be seen anywhere squamous cells are normally found. This includes the skin, inside of …
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What is melanoma in situ? Melanoma in situ is a non-invasive type of skin cancer made up of specialized cells called melanocytes. If left untreated, melanoma in situ can turn into an invasive type of skin cancer called invasive melanoma. Where does melanoma in situ start? Melanoma in situ starts from specialized cells called melanocytes …
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What is Merkel cell carcinoma? Merkel cell carcinoma is a type of skin cancer. It develops from the Merkel cells normally found in the skin. Merkel cells are neuroendocrine cells and Merkel cell carcinoma is a type of neuroendocrine tumour. For this reason, another name for Merkel cell carcinoma is primary neuroendocrine carcinoma of the …
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Adenoid cystic carcinoma (ACC) is a slow-growing but locally aggressive type of cancer most commonly found in one of the major salivary glands, such as the parotid, submandibular, or sublingual gland. Other possible locations include the skin, lungs, breasts, and prostate gland. Adenoid cystic carcinoma grows slowly but spreads widely into surrounding tissues. However, unlike …
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Background: An angiolipoma is a benign (non-cancerous) tumour made up of fat and small blood vessels. Most angiolipomas occur just under our skin, where they feel like a soft lump. What are the symptoms of angiolipoma? The symptoms of an angiolipoma can vary depending on its size and location, but common symptoms include: Palpable lump: …
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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 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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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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What is a pilar cyst? A pilar 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. Pilar cysts range in size from a few millimeters to several centimeters. Another …
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