Final answer:
Melanoma is the deadliest form of skin cancer, originating from melanocytes in the epidermis. The risk of developing melanoma can be significant, and it often presents as asymmetrical patches with uneven borders. Early detection and protective measures against UV radiation are key to improving survival rates and prevention.
Step-by-step explanation:
The question: '1 in _____ people will be diagnosed with melanoma during their lifetime' pertains to the incidence of skin cancer, specifically melanoma, in the general population.
Melanoma is a type of skin cancer that originates from melanocytes in the epidermis, which are cells responsible for producing melanin. It is the most fatal type of skin cancer due to its highly metastatic nature, meaning it can spread to other organs rapidly if not detected and treated early.
While specific lifetime risk numbers may vary based on geographical location, personal risk factors, and changes in the rate of diagnosis, it's clear from statistics such as 'one in two New Zealanders may develop skin cancer in their lifetime' that the incidence of skin cancer, including melanoma, is significant.
Melanoma typically presents as large brown or black patches with uneven borders and a raised surface, and effective prevention includes protective measures against UV radiation exposure like wearing sunscreen with high SPF, hats, and protective clothing.
Importance of Early Detection
Early detection of melanoma is critical for improving the chances of survival. As mentioned, most patients survive for at least five years if melanoma is detected while still localized in the skin.
However, if it has metastasized to distant organs, the five-year survival rate drops to 17 percent, underscoring the need for regular skin checks and reporting any suspicious changes to a doctor for early intervention and treatment.