Dermatology

Question 1

Dermatomyositis

Answer 1

• inflammatory disease of striated muscle

Question 2

Dermatomyositis signs

Answer 2

• heliotrope rash( red/purple rash on eyelids)
  -macular rash over the back and shoulders ( shawl sign)
  -red papules over the knuckles( gottrons papules)
  -

Question 3

Antibodies for dermatomyositis

Answer 3

Anti-jo and anti- mi2

Question 4

Erythema ab igne( fire)

Answer 4

Erythema due to heat damage.
Common in elderly
Hot water bottle rash
Sitting in front of fire
- explanation and avoidance of cause. It should resolve spontaneously

Question 5

Venous leg ulcer with squamous cell carcinoma term

Answer 5

Marjolins ulcer

Question 6

Ulcerated / crusted lesion - which skin cancer

Answer 6

Squamous cell carcinoma

Question 7

Slowly growing red scaly plaque not managed with psoriasis mangement

Answer 7

Bowens disease

Question 8

Secondary rash of syphillis presentation

Answer 8

Non itchy macular rash

Question 9

Increasing erythema over chin, nose and cheeks with overlying pustules
Management of this condition

Answer 9

1) acne rosacea

2) 0.75 % metronidazole gel

Question 10

Tinea capitis
Who gets it
Treatment
Investigation

Answer 10

More common in pre-pubertal boys - African American children
Treatment is with oral anti- fungals
Woods lamp

Question 11

Farmer red macular papular ring with central clearing + flu like illness

• which rash
• which disease
• which organism

Answer 11

• erythema migrants
• Lyme disease
• borreliosis- bacteria

Question 12

Eczema initial mangement

Answer 12

1% hydrocortisone cream

Question 13

Seborrhoeic dermatitis
Presentation
Causative organism
Management

Answer 13

• red scaly rash - affects scalp, eyebrows, nasolabial folds, cheeks and flexures.- scaly patches
  associated with dandruff
  Organism- malassezia furfur
  Rx- mild corticosteroid - antifungal preparations eg : daktacort( hydrocortisone 1% + miconazole 2% cream)

Question 14

Hair loss, nose bleeds, sore lips and Dr mucous membranes - side effect of which drug

Answer 14

Oral retinoids

Question 15

Well defined
Red plaques
Silvery scale on elbows and knees
Extensor surfaces

Answer 15

Psoriasis

Question 16

Allergic contact dermatitis key

Answer 16

Type 4 hypersensitivity reaction, needs to be sensitised as opposed to irritant which happens after first exposure

Question 17

Treatment for acne rosacea ( erythema with pustules)

Answer 17

Metronidazole gel

Question 18

Mechanism of transmission - plantar warts from one person to another

Answer 18

Indirect physical contact ( swimming pools public showers)

Question 19

trichotillomania

Answer 19

• inadvertent hair pulling
• increased periods of stress and anxiety
• GI disturbances

Question 20

most common skin complaint in HIV +ve

Answer 20

Warts.

Question 21

pityriasis rosacea

Answer 21

christmas tree disease, ring of scaling with a herald patch starts on a trunk, goes on a christmas tree pattern.

Question 22

what happens to discoid lupus once it clears.

Answer 22

it leaves a hypopigmented/pigmented lesion.

Question 23

tear drop like salmon pink papules covered in a fine scale. which condition
group A beta haemolytic streptococcal URTI#
associated with lithium, NSAIDs, antimalarials

Answer 23

guttate psoriasis.

Question 24

management of acitinic keratosis

Answer 24

cryotherapy

topical 5-fluorouracil larger number of lesions

Question 25

malignancy assoicateed rashes(3) | name, description , which cancer

Answer 25

- acanthosis nigricans - florid cutaneous papillomatosis- eruption of pruritic papules- very disgusting-intrabdominal malignancy - erythema gyratum repens- erythematous, circular, scaly lesions, associated with severe pruritis. - advances rapidly associated with TCC bladder- sybil

Question 26

paraneoplastic pemphigus

Answer 26

-polymorphic skin eruption of erythema, papules, bullae and painful mucosal erosions. B cell lymphoma- non hodgkins- poor prognosis.

Question 27

niacin deficiency- name and triad

Answer 27

- pellagra | - dementia, diarrhoea, dermatitis

Question 28

peeling paint syndrome

Answer 28

- dermatitis of carcinoid syndrome

Question 29

which anti-malarial medication can cause increased photosensitivity

Answer 29

doxycycline

Question 30

keratodermablenorrhagicum

Answer 30

- cobbletsone appearance hands/feet | - reactive arthritis manifestation

Question 31

organism that causes scabies

Answer 31

sarcoptes cabiei

Question 32

Severe itching , multiple papules on his feet and legs - continue to form a threadlike trail of red inflammation - diagnosis Management

Answer 32

Cutaneous larva migrans hookworm ova found in cat or dog faeces Topical bendazole

Question 33

Rash associated with glucagonoma( hyperglycaemia, weight loss ,anaemia)

Answer 33

Necrolytic migratory erythema ( red blistering rash across legs)

Question 34

Leser trelat sign

Answer 34

Explosive number of seborrhoeic keratosis lesions - sign of malignancy paraneoplastic syndrome

Question 35

management of guttate psoriasis

Answer 35

Reassurance+ topical treatment if symptomatic

Question 36

management of dermatitis herpetiformis(blistering skin disorder)

Answer 36

gluten free diet+ dapsone(antibiotic)

Question 37

erythema multiforme

Answer 37

hypersensitivity reaction triggered by infections target lesions initially seen on the back of hands and feet before spread to torso caused by viruses(HSV- most common cause), mycoplasma,drugs(penicillin, sulphonamides)

Question 38

red, thickened skin on soles,crop of raised lesions

Answer 38

palmoplantar pustulosis

Question 39

smelly feet, white skin over sole bilaterally, small holes seen on surface of affected skin

Answer 39

pitted keratolysis

Question 40

telogen effluvium

Answer 40

loss and thinning of hair in response to stress

Question 41

seborrhoeic dermatitis scalp management

Answer 41

-over the counter shampoo preparations-zinc pyrithione and tar

Question 42

bullous pemphigoid

Answer 42

tense blistering lesions very itchy referral to dermatology

Question 43

shiny pale, yellowish brown patches on shins(with telangiectasia), associated with diabetes

Answer 43

necrobiosis lipoidica