Sun Effects On Skin

Question 1

Sun…

Answer 1

Ultraviolet radiation - UVA, UVB & UVC
UVB - sunburn and tanning
UVA - skin aging

Question 2

Where do melanomas mostly occur on men and women?

Answer 2

Women - leg
Men - trunk especially on back

Question 3

What is basal cell carcinoma (non melanoma) skin cancer?

Answer 3

1. Affects more men than women - early sun exposure
2. Affects poor tanners
3. May be locally invasive
4. Surgery or radiotherapy
5. Excellent prognosis
6. Follow up important

Question 4

What is squamous cell carcinoma (non-melanoma) skin cancer?

Answer 4

1. Occurs more in older people
2. Long exposure to sunlight
3. Often on sun damaged skin
4. UV radiation - large part

Question 5

Who is at risk for malignant melanoma?

Answer 5

1. Adults with many melanocyte naevi (moles)
2. Adults who freckle easily
3. Adults with unusual moles
4. Adults with an early history of sunburn
5. Family history

Occurs in epidermal melanocytes

Question 6

What are the major features of the lesions?

Answer 6

1. Change in size
2. Irregular shape
3. Irregular colour

Question 7

What are the minor features of the lesion?

Answer 7

1. Largest diameter 7mm or more
2. Inflammation
3. Oozing
4. Change in sensation

Question 8

What is the ABCDE checklist?

Answer 8

A - asymmetry
B - border - blurry or jagged edges
C - colour - mole that has more than one colour
D - diameter - moles with diameter greater than 6mm
E - evolution - gone through sudden changes in size, shape or colour