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Melanoma is the most dangerous type of skin cancer; it develops from the melanin-producing cells known as melanocytes. [1] It typically occurs in the skin, but may rarely occur in the mouth, intestines, or eye (uveal melanoma). [1] [2] In women, melanomas most commonly occur on the legs; while in men, on the back. [2]
However, a melanocytic nevus is benign, and melanoma is malignant. Most melanocytic nevi never evolve into a cancer, with the lifetime risk for an individual nevus being 1 in 3000 for men and 1 in 11 000 for women. [5] Moreover, dermatologists have a standardized system for determining whether a skin lesion is suspicious for malignant melanoma.
Animal-type melanoma is a rare subtype of melanoma that is characterized by heavily pigmented dermal epithelioid and spindled melanocytes. [ 1 ] [ 2 ] Animal-type melanoma is also known to be called equine-type melanoma, pigment synthesizing melanoma, and pigmented epithelioid melanocytoma (PEM) . [ 3 ]
Skin cancer is the most common form of cancer, globally accounting for at least 40% of cancer cases. [5] [20] The most common type is nonmelanoma skin cancer, which occurs in at least 2–3 million people per year. [6] [21] This is a rough estimate; good statistics are not kept. [1]
A dermatoscope. A modern polarized dermatoscope. Although there are limited data to support its efficacy, skin self-examination is frequently recommended for preventing melanoma (by identifying atypical moles that can be removed) or for early detection of existing tumors.
Complete circumferential peripheral and deep margin assessment (CCPDMA) is the preferred method for the removal of certain cancers, especially skin cancers. [ 1 ] [ 2 ] There are two forms of CCPDMA surgery: Mohs surgery and surgical excision coupled with margin assessment.
Doctors dismissed mole on mom's wrist that her toddler pointed out. It was stage 2 melanoma. She's sharing her story to increase awareness, help others.
Uveal melanoma is a type of eye cancer in the uvea of the eye. [4] It is traditionally classed as originating in the iris , choroid , and ciliary body , but can also be divided into class I (low metastatic risk) and class II (high metastatic risk). [ 4 ]