Epidermal cancer is a type of skin cancer that develops in the epidermis, the outermost layer of the skin. The word "epidermal" can be spelled using phonetic transcription as /ɛpɪˈdɜːrməl/, with the stress on the second syllable. The "e" at the beginning is pronounced as "eh", followed by "p", which is pronounced with a "puh" sound. The second syllable is pronounced with a long "i" sound, followed by "dermal", which is pronounced with a short "e" sound and a silent "h". The word "cancer" is spelled /ˈkænsər/.
Epidermal cancer refers to a malignant growth that arises in the epidermis, which is the outermost layer of the skin. The epidermis is composed of various types of cells, including squamous cells, basal cells, and melanocytes, which are responsible for producing the pigment melanin. Epidermal cancer can occur when abnormal cells within the epidermis undergo uncontrolled proliferation, leading to the formation of a tumor or lesion.
There are several types of epidermal cancer, including squamous cell carcinoma, basal cell carcinoma, and melanoma. Squamous cell carcinoma arises from the squamous cells in the epidermis and is often associated with prolonged sun exposure. Basal cell carcinoma arises from the basal cells and is commonly caused by chronic sun damage. Melanoma, on the other hand, arises from the melanocytes and can develop anywhere on the body, including areas that are not typically exposed to the sun.
Epidermal cancer can present with various symptoms, such as changes in the color, shape, or size of a mole or lesion, the development of new growths, itching, bleeding, or ulceration. Early detection and treatment are crucial for successful management of epidermal cancer. Treatment options may include surgical excision, radiation therapy, chemotherapy, immunotherapy, or targeted therapy, depending on the type and stage of the cancer. Regular skin examinations and sun protection measures, such as wearing sunscreen and protective clothing, can help prevent the development of epidermal cancer.
The word "epidermal" is derived from the Greek words "epi", meaning "upon" or "above", and "derma", meaning "skin". It refers to the outermost layer of the skin, called the epidermis. The word "cancer" comes from the Latin word "cancer", which means "crab". It was used to describe certain tumors due to their crab-like appearance with outstretched legs. So, "epidermal cancer" refers to cancer that originates in the epidermis or outer layer of the skin.