Derm

Question 1

what are some causes of erythma nodosum

what do they look like

Answer 1

TB
pregnancy
IBD
sarcoidosis
cancer

discrete tender purple s/c nodules, normally on shins

Question 2

what is NICE guidance on sun exposure?

Answer 2

avoid 11-15.00
hats and clothes
SPF15 UVA4*

Question 3

what is erythroderma

Answer 3

general redness at least 90% skin surface

causes: eczema, psoriasis, penicillin, sulphonylurea, allopurinol

Question 4

what is eyrthema multiforme

Answer 4

Erythema multiforme is a skin condition considered to be a hypersensitivity reaction to infections ( herpes simplex) or drugs.

presents as iris or target lesions, although other forms of skin lesion can occur - hence the name

no mucosal involvement

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis are more major forms (10% and 30% body surface involvement resp, plus mucosal involvement,

Question 5

what bacteria is involved in acne vulgaris

Answer 5

propionibacterium acnes

Question 6

pathophysiology of acne?

Answer 6

increased sebum production due to androgens, plugging of pilosebaceous follicle, inflammation

Question 7

What are the major and minor NICE criteria for assessing malignant melanoma?

Answer 7

Major: evolution, assymmetry, colour
Minor: diameter, inflammation, oozing, change in sensation

Question 8

what are some risk factors for pressure sores?

Answer 8

immobility
mental apathy
iatrogenic (eg ICU)
reduced sensation
PVD
malnutrition

Question 9

outline the grades of pressure sore?

Answer 9

I - non-blanching erythema
II - cutaneous ulcer
III - subcutaneous ulcer
IV - necrosis, through fascia