Lentigo maligna melanoma
Lentigo Maligna Melanoma
Lentigo Maligna Melanoma (pronunciation: len-ti-go mal-ig-na mel-a-no-ma) is a type of skin cancer that originates from the melanocytes, the cells responsible for producing the skin pigment known as melanin.
Etymology
The term 'Lentigo Maligna Melanoma' is derived from three words. 'Lentigo' is a Latin word that translates to 'freckle', 'Maligna' is a Latin word meaning 'malignant' or 'harmful', and 'Melanoma' is derived from the Greek words 'melas' (black) and '-oma' (tumor).
Definition
Lentigo Maligna Melanoma is a subtype of melanoma that typically occurs in areas of the skin that have been exposed to the sun over a long period of time. It is characterized by the presence of malignant cells within the epidermis, the outermost layer of the skin.
Symptoms
The primary symptom of Lentigo Maligna Melanoma is a flat or slightly raised discolored patch that has irregular borders and is larger than 6mm in diameter. The color of the patch may vary from tan to dark brown.
Causes
The main cause of Lentigo Maligna Melanoma is prolonged exposure to the sun's harmful ultraviolet (UV) rays. Other risk factors include having a fair complexion, a history of sunburns, and a weakened immune system.
Diagnosis
Diagnosis of Lentigo Maligna Melanoma involves a physical examination of the skin and a biopsy of the suspicious lesion. The biopsy sample is then examined under a microscope to check for the presence of cancer cells.
Treatment
Treatment options for Lentigo Maligna Melanoma include surgery, radiation therapy, and immunotherapy. The choice of treatment depends on the stage of the cancer, the patient's overall health, and the location and size of the tumor.
Related Terms
External links
- Medical encyclopedia article on Lentigo maligna melanoma
- Wikipedia's article - Lentigo maligna melanoma
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