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year 3 conditions > dermatology > Flashcards

dermatology Flashcards

1
Q

yellow, greasy non pruritic scales on the scalp, classically with no underlying erythema, seen in babies
likely diagnosis?

A

Infantile Seborrhoeic Dermatitis, more commonly known as Cradle Cap

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2
Q

Tx for cradle cap

A

emollient (moisturiser) to help loosen the scales
then gently brush baby’s scalp with a soft brush and then wash it with baby shampoo

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3
Q

RF for atopic dermatitis

A

allergic rhinitis (hayfever),
age <5 years,
family history of eczema,
PMH/FH of atopy (food allergies, asthma)

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4
Q

contact dermatitis vs atopic dermatitis

A

contact dermatitis
- results from external factors
- type 4 hypersensitivity
- tested for vis skin patch test

atomic dermatitis
- internal skin condition
- type 1 hypersensitivity (IgE)
- tested for via skin prick tets

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5
Q

sites of involvement of atopic dermatitis in infants

A

cheek
forehead
extensor surfaces

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6
Q

sites of involvement of atopic dermatitis in children

A

flexures - particularly the wrists, ankles, and antecubital and popliteal fossa

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7
Q

2 signs of chronic atopic dermatitis

A

lichenification (thick leathery skin due to constant scratching)
hyperpigmentation

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8
Q

what medical emergency can present in children with atopic dermatitis

A

eczema herpeticum - presenst as rapidly growing painful rash

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9
Q

describe the presentation of eczema herpeticum

A

rapidly growing painful rash
punched out lesions
commonly seen in children with atopic dermatitis

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10
Q

cause of eczema herpeticum

A

HSV 1 or 2

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11
Q

Tx for eczema herpeticum

A

IV acyclovir - urgent as can be life threatening

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12
Q

levels of what are elevated in atopic dermatitis

A

IgE

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13
Q

Ix for atopic dermatitis

A

IgE levels
skin prick testing

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14
Q

Ix for contact dermatitis

A

skin patch testing

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15
Q

Tx for atopic dermatitis, normal and in severe cases

A

Emollients → improve skin barrier function by rehydrating the skin

Topical Corticosteroids → hydrocortisone

Severe Cases ⇒ systemic immunosuppressive agents (Oral Ciclosporin)

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16
Q

common causes of viral exanthema

A

chickenpox (varicella),
measles,
rubella

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17
Q

what is viral exanthema and where on body is it usually found

A

Widespread skin rash accompanying a viral illness

more likely to occur on trunk

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18
Q

Ix for viral exanthema

A

viral swab
blood tests

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19
Q

Tx for viral exanthema

A

Antipyretics → paracetamol
Moisturising emollients to reduce itch

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20
Q

where do pressure sores usually happen

A

over a bony prominence eg sacrum or heel

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21
Q

RF for pressure sores

A

immobility,
recent surgery
intensive care stay,
diabetes,
malnutrition

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22
Q

what score is used to screen for pts who are risk of developing pressure sores and what does it take into account

A

Waterlow score

Takes into account
BMI,
nutritional status,
skin type,
mobility
continence

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23
Q

stages 1-4 of pressure ulcers/sores

A

Stage 1 ⇒ nonblanchable erythema of intact skin.
Stage 2 ⇒ loss of dermis +/- epidermis. Superficial ulcer.
Stage 3 ⇒ loss of all skin layers (full thickness).
Stage 4 ⇒ extensive destruction, tissue necrosis, or damage to muscle, bone or supporting structures

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24
Q

describe the erythema in pressure sores/ulcers

A

non blanchable

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25
Q

what are the clinical features of a pressure sore/ucler

A

over bony prominence eg scream/heel
non blanch able erythema
described skin perfusion (^CRT)
painful - (different from neuropathic ulcers which are painless)
signs of wind infection eg purulent drainage, foul smell

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26
Q

Ix for pressure sores

A

Evaluate for predisposing factors → blood glucose, HbA1C, serum albumin (assess malnutrition)

Check for infection → leukocytosis and increased CRP

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27
Q

management of pressure sores/uclers

A

Pressure relief over affected area

Frequent position changes (every 2 hrs) for immobile patients

Moist wound environment (encourages ulcer healing)

Analgesia (paracetamol, ibruprofen)

Ensure good Nutrition

Wound Management → cleaning & dressings

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28
Q

management of stage 3/4 pressure sores/uclers in pt who are and aren’t suitable for surgery

A

Debridement of necrotic tissue (if not suitable for surgery)

Surgical debridement and reconstruction with flap formation (if suitable for surgery)

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29
Q

which layers of the skin are infected in cellulitis

A

deep dermis and subcutaneous tissue

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30
Q

most common causative bacteria of cellulitis

A

Streptococcus pyogenes (catalase -ve)
Staphylococcus aureus (catalse +ve)

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31
Q

RF for cellulitis

A

obesity
diabetes,
venous insufficiency,
eczema,
oedema

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32
Q

describe the skin, lesions and systemic symtopoms of cellulitis

A

red painful hot swelling
poorly defined lesions
fever, chills, nausea, headaches

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33
Q

what is erysipelas in cellulitis and what is it cause by

A

causes well defined lesion

More superficial, limited version of cellulitis

Caused by streptococcus pyogenes.

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34
Q

where does cellulitis most commonly occur

A

legs (shins)

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35
Q

Ix for cellulitis

A

Clinical Diagnosis → only request further tests if signs of systemic illness or septicaemia

High WCC and CRP

Skin Swab MCS → can identify pathogen and antibiotics susceptibility

If patient admitted and septicaemia suspected → blood cultures and sensitivities

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36
Q

which classification is used to guid management of cellulitis

A

ERON classification

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37
Q

class I, II, III of cellulitis and how to manage each

A

Class I (no systemic systems or co-morbidities) → managed in primary care with oral antibiotics

Class II (systemically unwell or systemically well with co-morbidity) → short term hospitalization

Class III (significant systemic upset)
or IV (sepsis or nec fasc) → urgent hospital admission

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38
Q

first line Tx for mild/moderate cellulitis, and what is the replacement if have penicillin allergy

A

Flucloxacillin → 1st line treatment for mild/moderate cellulitis

If Penicillin Allergic → clarithromycin, erythromycin (in pregnancy), or doxycycline

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39
Q

Tx for cellulitis if severe systemic symptoms (eg. septic signs, tachycardic + hypotensive) or significant comorbidites

A

hospital admission + IV co-amoxiclav, cefuroxime, clindamycin or ceftriaxone

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40
Q

what can psoriatic skin manifestations be made up of

A

plaques
papules

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41
Q

describe the papules in psoriasis

A

erythematous
circumscribed / well demarcated
scaly
purple / silver

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42
Q

what pathophysiology causes the papules and plaques in psoriasis

A

abnormal T cell activity –> stimulates keratinocyte proliferation

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43
Q

describe the clinical course of psoriasis

A

relapsing course, with symptoms free intervals

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44
Q

describe the 3 types of psoriatic skin problems

A

plaque psoriasis
- raised inflamed plaque lesions with a superficial silvery-white scaly eruption

flexure psoriasis
- skin is smooth.
Occurs on skin creases or flexures (ie. groin, armpits).

guttate psoriasis
- widespread, erythematous, fine, scaly papules (water drop appearance) on trunk, arms, and legs.
The lesions often erupt after an upper respiratory infection (frequently triggered by a streptococcal infection- fever and sore throat)

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45
Q

what exacerbates and relieves plaque psoriasis

A

exacerbates: BBs, NSAIDs, ACEi, lithium
receives: sun exposure

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46
Q

what triggers guttate psoriasis

A

URTI esp strep infection

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47
Q

Tx of guttate psoriasis

A

phototherapy

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48
Q

in psoriasis in which order do arthritis and skin manifestations happen

A

1st arthritis, then skin lesions develop

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49
Q

describe psoriatic arthritis pattern and what the 2 main features are

A

asymmetrical arthritis pattern
2 main features
1. DIP swelling - “pencil in cup deformity”
2. dactylitis (sausage fingers)

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50
Q

which gene is psoriatic arthritis linked to

A

HLA-B27

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51
Q

Tx of psoriatic arthritis

A

NSAIDs and DMARDs (methotrexate)

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52
Q

which medication should be avoided in psoriatic arthritis to avoid skin lesion flare ups

A

oral steroids

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53
Q

describe nail manifestations of psoriasis

A

pitting
onycholysis (seperation of the nail from the nail bed)

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54
Q

what is Koebner phenomenon

A

skin lesions caused by trauma (physical stimuli or skin injury)

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55
Q

what is Auspitz sign

A

small pinpoint bleeding when scales are scraped off

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56
Q

1st and 2nd line treatment

A

1st line
topical corticosteroid (hydrocortisone) + topical vitamin D analogue (calcipotriol)
Corticosteroids reduce inflammation, Vitamin D reduced keratinocyte proliferation

2nd line
Phototherapy (secondary care) → narrowband ultraviolet B light

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57
Q

what is 1st line systemic Tx for psoriasis

A

oral methotrexate

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58
Q

why should steroids for psoratic skin conditions not be used for more than 8 weeks

A

can cause
- skin atrophy
- rebound symptoms
- striae

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59
Q

what’s another name for urticaria

A

hives

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60
Q

describe the lesions of urticaria

A

“wheals”
BLANCHING
smooth
raised skin
oedematous
pruritic
painless
erythematous
rapidly developing (minutes)
short lived (<24hrs)
leaves no skin markings once resolved

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61
Q

is urticaria blanching or non blanching

A

BLANCHING

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62
Q

contrast causes of acute or chronic urticaria

A

acute: allergy
chronic: exposure to heat/cold, pressure, sunlight, vibration, Ach release, water

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63
Q

which drugs can cause urticaria

A

aspirin
penecillin
NSAIDs
opiates

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64
Q

what are urticaria marks called

A

wheals

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65
Q

what other swelling is urticaria associated with

A

angioedema (swelling of face, tongue, lips)

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66
Q

what is urticarial vasculitis

A

chronic / recurrent urticaria due to affected small blood vessels in the skin

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67
Q

what Ix do you do if you suspect urticarial vasculitis

A

CRP and ESR

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68
Q

1st line Tx for urticaria

A

Trigger identification & avoidance

antihistamine (loratadine or cetirizine)

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69
Q

Tx for severe / recurrent episodes of urticaria

A

prednisolone

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70
Q

which part of the skin does necrotising fasciitis affect

A

subcutaneous soft tissue

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71
Q

contrast type 1 and 2 necrotising fasciitis

A

type 1 (more common)
- polymicrobial
- aerobes and anaerobes
- common in diabetics following surgery

type 2
- monomicrobial
- strep pyogenes

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72
Q

RF for necrotising fasciitis

A

immunosuppressed / diabetes
SGLT2 inhibitors
IVDU
surgery
cutaneous trauma
varicella zoster infection

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73
Q

most common site for necrotising fasciitis

A

perineum - fourniere’s gangrene

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74
Q

describe presentation of necrotising fasciitis

A

acute onset
erythema and oedema
systemic features of infection:
- hypotension
- tachycardia
- palpitations
-N&V
- fever
- tachypnoea
- lightheadedness

75
Q

2 signs of advanced necrotising fasciitis

A

delirium
crepitus

76
Q

Ix for necrotising fasciitis in order

A

1) surgical exploration
2) bloods and tissue culture

77
Q

Tx for necrotising fasciitis

A

urgent surgical debridement
Abx (give empirical first, then specify when cultures come back)

78
Q

which pts have higher mortality with necrotising fasciitis

A

patients who develop shock and end-organ damage

79
Q

what virus causes chicken pox

A

Varicella zoster virus (VXV)

80
Q

what does HSV1 primarily cause

A

oral and genital herpes

81
Q

what does HSV2 primarily cause

A

genital herpes

82
Q

what is the name for severe inflammation of most of the body’s skin surface - redness, scaling

A

erythroderma

83
Q

what is sezary syndrome

A

erythroderma + lymohadenopathy + heaptosplenomegaly

84
Q

itchy red rash of pustules in an area around hair follicles, most common on neck / armpit / groin
diagnosis?

A

folliculitis

85
Q

very itchy red rash made of small red lesions in the groin area
likely diagnosis

A

scabies

86
Q

what colour are genital warts

A

flesh coloured

87
Q

prognosis of varicella zoster in children vs adults

A

children: self limiting
adults: associated with complications, such as secondary bacterial infection, encephalitis, and pneumoni

88
Q

pushed out lesion with well emaciated edges
painful
arterial insufficiency
prolonged CRT
poor pulses
ischaemic changes eg hair loss, smooth shiny skin
diagnosis

A

arterial ulcer?

89
Q

ulcer after physical insult to area, hemosiderin deposition
diagnosis?

A

traumatic ulcer
this is secondary to vascular insufficiency and the hemosiderin deposits here suggests underlying venous insufficiency.

90
Q

painful ulcers
usually affects legs
cribriform healing pattern
undermined edges
violaceous borders
associated with IBD
can be caused by minor injury to area: starts off as small red lesion then rapidly widens and deepens
diagnosis?

A

pyoderma gangrenosum

91
Q

causes of erythroderma

A

Dermatitis: Atopic dermatitis, seborrhoeic dermatitis, contact dermatitis

Psoriasis

Pityriasis rubra pilaris

Drug allergies

Idiopathic triggers

Sezary syndrome, a type of cutaneous T-cell lymphoma, which leads to erythroderma, lymphadenopathy, and hepatosplenomegaly. It is defined by the presence of Sezary cells, which are atypical T cells, in the peripheral blood circulation.

92
Q

purpuric rash
abdo pain
arthralgia
diagnosis?

A

henoch-Schonlein purpura

93
Q

what is telangiectasia

A

spider veins
(small, red and purple clusters)

94
Q

what does CREST syndrome entail

A

Calcinosis: Calcium skin deposits

Raynaud’s phenomenon

Esophageal dysfunction:

Sclerodactyly: Skin damage on fingers - tight shiny skin on fingers, causes them to curl at tip

Telangiectasia: Spider veins

95
Q

another name for CRESt sydrome

A

limited cutaneous systemic sclerosis

96
Q

which antibodies are associated with CREST syndrome / imited cutaneous systemic sclerosis

A

anti centromere antibodies

97
Q

what is erythema nodosum

A

tender, red bumps, usually found symmetrically on the shins

98
Q

prodromal illness followed by the sudden appearance of a widespread, painful, erythematous rash.
A least two mucosal sites are involved
diagnosis?

A

Stevens-Johnson Syndrome (SJS)

99
Q

causes of Stevens-Johnson Syndrome (SJS)

A

usually adverse drug reaction
Sulphonamides (such as Co-trimoxazole),
Beta-lactams (such as Penicillin)
anti-convulsants (such as Phenytoin).

100
Q

pt has UTI for which she starts taking medication, the develops painful sudden inset rash and ulcers on lips and genitals
what is the diagnosis and the cause if it

A

stevens-johnson syndrome
caused by cotrimoxazole (med for UTI)

101
Q

pt has bacterial tonsillitis and sore throat followed by rash on her shins. what is the cause of her erythema nodosum

A

strep pyogenes

102
Q

describe the rash seen in meningitis

A

non blanching
palpable
purpuric

103
Q

what is erythema multiform

A

dye to allergic reaction to medication of infection - esp HSV
eruption of target lesions spreading from the distal limbs to the trunk
only affects ONE mucosal site

104
Q

if pt with psoriasis on education develops swollen gums, which med likely caused this

A

ciclosporin

105
Q

cyclosporin side effects

A

the 5 H’s:
hypertrophy of the gums,
hypertrichosis (excessive hair growth)
hypertension,
hyperkalaemia
hyperglycaemia (diabetes)

106
Q

what abdominal issue can occur with Henoch-Schonlein purpura

A

intussusception

107
Q

describe the rash in Henoch-Schonlein purpura

A

Henoch-Schonlein purpura
presents with bio pain, arthirtritis, renal issues, intussusception

108
Q

which medication worsens psoriasis

A

beta blockers, ACEi, NSAIDs, lithium

109
Q

what is herpes zoster (shingles) caused by

A

reactivation of varicella zoster virus

109
Q

how does herpes zoster present

A

unilateral blistering lesions with sensory derangement - common in immunocompromised

110
Q

Tx for herpes zoster

A

mild = analgesia and calamine lotion
seere = acyclovir

111
Q

history of stress and scratching,
one single play on back of neck or perineum
diagnosis?

A

lichen simplex chronicus

112
Q

what is tuberous slcerosis

A

rare genetic condition that causes mainly non-cancerous (benign) tumours to develop in different parts of the body

113
Q

tuberous sclerosis skin manifestation

A

angiofibromas - firm pales in a butterfly distribution across face
shagreen patch - Leathery patch on sacrum, that is dimpled like orange peel
fleshy tumour that grow from nail folds
ovals of hypo pigmented skin that fluoresce under wood’s light

114
Q

what are dermatophytoses

A

fungal infection of skin and nails

115
Q

triggers for psoriasis

A

Skin trauma (Koebner phenomenon)
Infection: Streptococcus, HIV
Drugs: B-blockers, Anti-malarials, Lithium, Indomethacin/NSAIDs (BALI)
Withdrawal of steroids
Stress
Alcohol + smoking
Cold/dry weather

116
Q

characteristic feature of impetigo

A

gold crusting

117
Q

what should you remember about the distribution of intermittent claudication

A

it is BILATERAL

118
Q

which medication us used in the treatment of pruritus due to biliary obstruction

A

cholestyramine

119
Q

respiratory symptoms
erythema nodosum
no recent travel history or contacts
likely diagnosis?

A

sarcoidosis
(lack of travel history makes TB less likely)

120
Q

acute hypersensitivity reaction with limited or no mucosal involvement
target lesions
occurs after infection - esp HSV (presents w cold sores on lips)

A

erythema multiform

121
Q

what presents with target lesions

A

erythema multiform

122
Q

what presents with annular lesions

A

Tinea infections, caused by a dermatophyte fungus commonly known as ringworm

123
Q

what presents with discoid lesions

A

discoid eczema
discoid lupus erythematosus

124
Q

what is the name for painful open pustular ulcers that have a blue overhanging edge, and which condition are they commonly seen in

A

pyoderma gangrenosum
IBD

125
Q

dermatological manifestation of TB

A

scrofuloderma,
a cold, painless abscess in then which can ulcerate

erythema nodosum - raised red ender rash on shins

126
Q

what is given to a pt with urticaria who hasn’t responded to antihistamines

A

oral prednisolone

127
Q

which condition has a flu like prodrome followed by the development of an erythematous macular rash with ulceration of the pharynx and buccal mucosa

A

Stevens–Johnson syndrome (SJS)

128
Q

what is erythroderma and how does it present

A

serve inflammation of most of body’s skin surface
redness and scaling
starts in patches and then spreads all over body
life threatening
“Generalised erythema, pruritus and scaling”

129
Q

causes of erythroderma

A

psoriasis
reaction to medication

130
Q

what is Seborrheic dermatitis

A

common skin condition that mainly affects your scalp. It causes scaly patches, inflamed skin and stubborn dandruff.
affects oily ares of skin which produce sebum

131
Q

describe the appearance of a wheal

A

raised lesion - skin coloured swelling
surrounded by erythema

132
Q

what is Toxic epidermal necrolysis

A

life-threatening skin disorder characterized by a blistering and peeling of the skin. This disorder can be caused by a drug reaction—often antibiotics or anticonvulsives.

133
Q

raised red tender rash seen symmetrically on shins
and pt is having trouble breathing
diaganosis?

A

erythema nodosum
caused by TB or sarcoidosis

134
Q

bullseye rash occurs after tick bite
- associated with Lyme disease
diagnosis?

A

erythema migrans

135
Q

what is compartment syndrome and when/where is pain felt

A

commonly occurs after fracture of leg
swelling/tightness -> raised pressure reduces blood supply, causing tissue necrosis
pain is in the front leg and is worse on pass ankle dorsiflexion
(no blisters/blackened appearance of skin)

136
Q

pt injured themselves and now has a rash on same area. what is the term given to this presentation?

A

Koebner’s phenomenon
(occurs in psoriasis)

137
Q

what condition does Hyperproliferation of cells causing a decreased skin turnover time cause

A

psoriasis

138
Q

what does a genetic defect in the skin barrier

A

atopic dermatitis

139
Q

what medication should be used and what should be avoided for the pain associated with chicken pox

A

use paracetamol
avoid NSAIDs eg ibuprofen as can cause necrotising fasciitis

140
Q

when can a child with chicken pox return to school

A

when all the lesions have crusted over

141
Q

which condition is mucous membrane involvement characteristic of

A

Steven-Johnson’s syndrome

142
Q

which bacteria cause impetigo - rash with honey coloured crusts

A

staph aureus
strep pyogenes

143
Q

erythema nodosum vs dermatitis herpetiformis

A

erythema nodosum
- painful patches on legs
- caused by IBD

dermatitis herpetiformis
- itchy, blistering
- caused by coeliac disease

144
Q

describe a venous ulcer, and what 2 other features are likely to be seen on the legs as well

A

painless
granulated pink-red base
medial aspect of lower leg
associated with oedema and varicose veins

145
Q

purple - flat topped plaques appearing on skin
very itchy
pt recently started new med
diagnosis?

A

lichenoid eruption

146
Q

girl has had rashes before but has suddenly presented with a new different looking one (multiple red, monomorphic blisters and erosions across her face and neck)
she has a fever and feels unwell
diagnosis and Tx?

A

eczema herpeticum as a complication of atopic eczema
IV acyclovir

147
Q

first and second line Tx for impetigo

A

1st: topic abx (fusidic acid or mupirocin)
2nd: oral abx (flucloxacillin)

148
Q

usual cause of itchy rash which is limited to just the hands

A

contact dermatitis

149
Q

which condition causes target lesions and was is the most common cause of this condition

A

erythema multiforme
HSV

150
Q

where do psoriasis plaques most commonly appear

A

extensor surfaces of elbows and knees, scalp

151
Q

pt develops scaly rash after finishing his GCA (giant cell arteritis) Tx
diagnosis?

A

psoriasis
(withdrawal from steroids can cause psoriasis)

152
Q

what is Henoch-Schönlein purpura or HSP also known as

A

IgA vasculitis

153
Q

which condition has a triad of purpura (red blots due to bleeding under skin), arthritis and abdo pain (can also have haemoptysIs)

A

IgA vasculitis aka HSP

154
Q

when should topical corticosteroids be prescribed or atopic eczema

A

when the pruritic is severe enough to cause excoriations

155
Q

which medication would you prescribe to a pt with primary biliary cirrhosis to relieve their pruritis

A

cholestyramine

156
Q

features of scarlet fever

A

strawberry togue
white patches on swollen tonsils
red throat
swollen lymph nodes
fever
headache
rash

157
Q

common causes of rash on extensor surface

A

psoriasis
dermatitis herpetiformis
erythema multiform
some types of eczema (atopic eczema in infants, children is on flexures)

158
Q

when should methotrexate not be used for psoriasis

A

pregnancy

159
Q

what must be avoided whilst taking methotrexate for psoriasis

A

alchohol

160
Q

side effects of methotrexate

A

myelosuppression, pulmonary fibrosis and liver fibrosis

161
Q

when is phototherapy used for psoriasis

A

when the disease is extensive and non-responsive to topical therapies

162
Q

what does haemosiderin deposition look like and what is it suggestive of

A

patch of darker skin eg brown
suggests venous insufficiency

163
Q

which type of white blood cell is associated with contact dermatitis

A

T lymphocytes

164
Q

which antibody is most likely to be found in SLE, and which antibody is used to diagnose LSE

A

Anti-nuclear antibody (ANA) = most common
Anti-dsDNA antibody = most specific –> sue for diagnosis

165
Q

which condition has Anti-cyclic citrullinated peptide (anti-CCP) antibody

A

rheumatoid arthirits

166
Q

which condition has Anti-cardiolipin antibody

A

antiphospholipid syndrome

167
Q

how does erythema multiform rash spread across the body

A

starts on the palms/soles and then spreads out

168
Q

what type of medication is methotrexate

A

an anti-folate medication, hence inhibiting the synthesis of DNA and inducing immunosuppression

169
Q

pyoderma gangrenosum vs SJS

A

both cause blistering lesions
pyoderma is typically located to one region eg legs
SJS affects widespread area and mucosal membranes eg mouth/lips

170
Q

“erythema of the cheeks that spares the nasolabial folds”
likely diagnosis?

A

SLE

171
Q

Ix for SLE

A

serum autoantibodies - anti dsDNA

172
Q

Nikolsky’s sign and which condition it is seen in

A

a rash that peels when pressure is applied
SJS

173
Q

main features of SJS

A

blistering rash
a rash that peels when pressure is applied (Nikolsky’s sign)
mucosal ulceration
prodromal flu like illness

174
Q

features of SLE

A

malar rash
discoid lupus erythematosus
photosensitivity
alopecia
Subacute Cutaneous Lupus Erythematosus - lesions triggered by UV exposure
ulcers/vasculitis
myalgia
arthralgia

175
Q

Tx for pyoderma gangrensosum

A

1st line: prednisolone (oral or topical)
and line: immunosuppressants

176
Q

which STI can cause erythema nodosum

A

chalmydia

177
Q

first line Tx for pts with venous insufficiency

A

compression bandaging

178
Q

how does sunlight affect SLE vs psoriasis

A

worsens SLE - Discoid lupus erythematosus is the development of red scaling plaques in sun exposed areas of skin

improves plaque psoriasis

179
Q

what is used to confirm diagnosis of SJS

A

skin biopsy

180
Q

which auto antibodies could be present in a pt with dermatitis herpetiformis

A

Anti-tissue transglutaminase (anti-TTG) antibodies –> underlying diagnosis of coeliac disease

181
Q

what is another word for athletes foot

A

tinea pedis

182
Q

management of dermatitis herpetiformis

A

dapsone (antibiotic)
as well as maintaining glute free diet to manage the cause - coeliac disease

183
Q

On examination there is a large, erythematous, scaly patch across 3 toes and part of the dorsum of his left foot. There is an area of central clearing and the outer edge appears most inflamed.
diagnosis?

A

tinea pedis / athletes foot

year 3 conditions (17 decks)

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