Dermatology Flashcards
1
Q
What are the symptoms of Psoriasis and what kind of disease is it?
A
- Red, flaky patches covered in silver scales
- Autoimmune disease
2
Q
What causes psoriasis?
A
- Cells renew every 3-7 days rather than every 3-4 weeks
- Immature skin cells proliferate on top of keratin
3
Q
What are the 2 types of malignant melanoma?
A
- Nodular
- Lentigo
4
Q
What are the symptoms of malignant melanoma?
A
Appearance of a new mole or an existing mole changing
5
Q
What causes malignant melanoma?
A
Abnormal development of skin cells due to UV radiation
6
Q
What are the two types of vitiligo?
A
Segmental and Non-Segmental
7
Q
What is non-segmental vitiligo and what causes it?
A
- Symmetrical and bilateral white patches
- Autoimmune
- T-cells attack melanocytes
8
Q
What is segmental vitiligo and what causes it?
A
- Affects one place and is less common
- Neurochemicals cause melanocytes to autolyse
9
Q
What kind of disease is Alopecia Areata and what is its mechanism?
A
- Systemic autoimmune disorder
- T-cells cluster around affected follicles
- Has genetic influence
