derm

Question 1

affected layer of atopic dermatitis

Answer 1

whole epidermis

Question 2

Answer 2

macule

Answer 3

nodule
- raised (vertical) and wide

Answer 4

plaque

Question 5

how to divide acne

Answer 5

inflammatory vs non inflammatory

Question 6

why are blackheads black

Answer 6

oxidised melanin

Question 7

what is involved in the pathogensis of acne

Answer 7

1. increase sebum production
   = face becomes more oily
   =
2. hyperkeratinisation
3. p acne or c acne formation

Question 8

what is the pathogenesis of acne

Answer 8

Answer 9

Question 10

what is the background of acne treatment

Answer 10

tropical retinoids

Question 11

neurofibroma vs dermatofibroma

Answer 11

neurofibroma:
- skin coloured
- raised nodule
- soft

dematofibroma:
- flat nodule
- firm

Question 12

where is the origin of neurofibroma

Question 13

describe this

Answer 13

epidermal cyst
- invagination to form thick skin wall
- punctum

Question 14

bullous impertigo vs non bullous

Question 15

‘honey crusted/ golden’

Answer 15

non bullous impetigo

most common pathogen: staph aureus

Question 16

transudate vs exudate

Answer 16

Question 17

what is this

Answer 17

infantile hemangioma

• usually at head and neck region
• superficial vs deep vs mixed

superficial: BRIGHT RED & clearly demarcated
deep: appear blueish or skin coloured
mixed: not well demarcated

**usually do not arise at birth

Question 18

when does an infantile hemangioma reach it’s max size

Answer 18

rapid growth: 3-6 months
max size: 6-9 months

Question 19

what is PHACES syndrome vs PELVIS syndrome

Answer 19

posterior fossa malformation
haemangioma
Arterial anomalies
Cardic and aortic anomalies
Eye anomalies
Sternal cleft defects

Question 20

what are the red flags of infantile haemangioma?

Answer 20

1. at periorbital region
2. lip, anogenital region –> ulceration
3. nasal tip –> partial/ slow involution

Question 21

what is the most common skin cancer worldwide?

Answer 21

basal cell carcinoma