Cancerous Moles Quiz

Staff

Which type of cancer accounts for only 5 percent of skin cancer cases, yet is responsible for a large number of cancer deaths?

Although less common than other types of skin cancer, melanoma is much more aggressive.

What's the name of the skin cell that clusters to form a mole?

Sometimes, small groups of melanocytes -- the skin cells responsible for making melanin -- will group together to form a mole.

What percentage of freckles become cancerous?

Like moles, freckles are made from melanocyte clusters. However, unlike moles, they're not likely to ever become cancerous.

Which acronym does the American Academy of Dermatology use to help people determine changes in a mole?

It's recommended that you evaluate the ABCDE characteristics of your moles: Asymmetry, Border, Color, Diameter and Evolving changes.

What types of border irregularities are common in melanomas?

Melanoma borders usually have scallop shapes.

What is the ideal maximum diameter size for a normal, healthy mole?

Any mole over 1/4 inch (6.35 mm) should be monitored for additional growth or changes.

What is a sign that a mole is evolving?

Itching and burning -- particularly in a new mole -- should be checked out immediately.

What type of test does a doctor conduct to determine whether or not a mole is cancerous?

If your doctor thinks a mole looks suspicious, he'll conduct a biopsy so that the mole's cells can be examined by a pathologist.

What stage of melanoma indicates the cancer has not spread beyond the upper layer of skin?

Stage 0, where the cancer is still only in the upper layer of skin, is the earliest and most treatable stage of melanoma.

What is the 10-year survival rate for someone diagnosed with stage IV melanoma?

The 10-year survival rate for those diagnosed with the most aggressive stage of melanoma, stage IV, is only 14 percent.

Explore More Quizzes

Image: refer to hsw

About This Quiz

Most moles are harmless, but some can be dangerous. See if you know the difference between healthy and cancerous moles in this info-packed quiz.

About HowStuffWorks Play

How much do you know about dinosaurs? What is an octane rating? And how do you use a proper noun? Lucky for you, HowStuffWorks Play is here to help. Our award-winning website offers reliable, easy-to-understand explanations about how the world works. From fun quizzes that bring joy to your day, to compelling photography and fascinating lists, HowStuffWorks Play offers something for everyone. Sometimes we explain how stuff works, other times, we ask you, but we’re always exploring in the name of fun! Because learning is fun, so stick with us!