Skin: cancers and Pigmentation Flashcards
1
Q
- What is varied skin colour due to
A
increased melanocyte activity
2
Q
what causes freckles
A
focal activity causes freckles
3
Q
give 3 cases of disordered pigmentation
A
- Lentigo maligna
- Albinism
- Vitiligo
4
Q
what is Albinism
A
lack of melanin due to lack of tyrosinase required to make melanin
5
Q
what is vitiligo
A
macules of de-pigmented skin enlarging over time
6
Q
- What type of cancer is basal cell carcinoma
A
non-metastasising cancer of basal cells
7
Q
- How can you diagnose basal cell carcinoma
A
biopsy
8
Q
- What type of cancer of squamous cell carcinoma
A
malignancy of upper epidermal layers
9
Q
- How long can squamous cell carcinoma be in the skin before it metastases
A
5 year survival
10
Q
- How does melanoma arise
A
arise from pre-existing or new nevi
