Question

Which of the following is characteristic of malignant melanoma?

a.) Most common skin cancer in light-skinned individuals

b.) Often due to occupational exposures, such as tar and coal

c.) It is a neoplasm of the nonkeratinizing cells of the epidermis

d.) May appear on mucous membranes, palms, and plantar surfaces of darker skinned clients

Answer 1

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The correct option is a, Malignant melanoma is more common in fair skinned individuals having fair hairs or blue eyes, and who have been more likely to be exposed by U.V radiation. Because cells called melanocytes are responsible for melanin pigment which turns skin to black or brown color, and protects the layer of skin by getting damage from U.V rays, but white people lack melanin pigmentation so,they are more prone to melanoma.

Occupational exposures are the risk factor for melanoma but mainly it is caused by excessive exposure of U.V radiation.

Malignant melanoma is neoplasm of skin that arise from a cell that produce melanin called as melanocytes. Basal cell carcinoma is neoplasm of nonkeratinizing cells of epidermis.

Melanoma occur more commonly in skin but also found in legs, trunk, oral cavity, eye ,etc.

Thankyou.