This article is designed to help you understand your pathology report for primary cutaneous anaplastic large cell lymphoma. Each section explains an important aspect of the diagnosis and what it means for you. What is primary cutaneous anaplastic large cell lymphoma? Primary cutaneous anaplastic large cell lymphoma is a type of cancer that develops in …
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Lentigo maligna melanoma is a type of skin cancer that develops in areas of skin with significant sun damage, such as the face, neck, or arms. It begins as a non-invasive form of skin cancer called lentigo maligna, which is confined to the top layer of skin (the epidermis). Over time, lentigo maligna may progress …
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A nevus (plural: nevi) is a medical term used to describe a growth or spot on the skin that develops from melanocytes. Melanocytes are the cells in the skin that produce melanin, the pigment responsible for skin and hair colour. Most nevi are harmless and commonly called moles, though the term nevus includes various pigmented …
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A blue nevus is a type of benign (noncancerous) growth made up of specialized cells called melanocytes. It is characterized by its distinctive blue or bluish-gray color, which is caused by the presence of melanin deep within the dermis, a phenomenon known as the Tyndall effect. What causes a blue nevus? Blue nevus is generally …
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Keratoacanthoma is a rapidly growing but benign (noncancerous) type of skin tumour. It typically involves hair-bearing skin on the face, although other body parts can occasionally be involved. What causes keratoacanthoma? Keratoacanthoma is believed to be caused by excessive sun exposure. However, in many cases, the tumour only grows after the skin is involved in …
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Squamous cell carcinoma in situ or Bowen’s disease is an early non-invasive type of skin cancer. It starts from squamous cells normally found in a part of the skin called the epidermis. If left untreated, squamous cell carcinoma in situ can evolve into a more aggressive type of skin cancer called invasive squamous cell carcinoma. What …
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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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Basosquamous carcinoma is a type of skin cancer. It is a more aggressive variant of basal cell carcinoma. In addition to the typical features of basal cell carcinoma, basosquamous carcinoma also shows features of another type of skin cancer called squamous cell carcinoma. The tumour starts from specialized basal cells found near the surface of …
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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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