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Tomakesense 3 > Dermatology > Flashcards

Dermatology Flashcards

(68 cards)

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1
Q

How can Telegentasia and Spider Naevia be differentiated?

A

Spider naevia fill from the centre- a/w liver disease and telengtasia refill from the outside.

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2
Q

According to the Gell and Coombs classification, what type of reaction is allergic dermatitis?

A

Type 4- T cell mediated, “delayed hypersensitivity”

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3
Q

What is the classical sign associated with a dermatofibroma?

A

Dimples when pressed. Dermatofibroma is a nodule, benign associated with trauma such as an insect bite.

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4
Q

Management of Ptyriasis Verscicolor?

A

Topic anti fungal eg ketonazole shampoo

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5
Q

What is the rash seen in Lyme disease?

A

Erythema Migrans

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6
Q

Treatment of Acne Rosaeca?

A

First line: topical ivermectin
Second line: ADD in oral doxycycline

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7
Q

What things can exacerbate psoriasis?

A

B blockers, trauma, alcohol, lithium, antimalarials, NSAIDS, ACEi

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8
Q

What virus causes eczema herpeticum?

A

Herpes simplex 1

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9
Q

What is the first line tx for scalp psoriasis?

A

Topical steroids

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10
Q

In which condition is a hearld patch seen?

A

Pityriasis rosea

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11
Q

Keratoderma blennorrhagica is seen in which condition?

A

Reactive arthritis (rash on the feet)

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12
Q

How does oral leukoplakia present?

A

White plaques on tongue that can’t be rubbed off. Common in smokers. Need to exclude SCC

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13
Q

Dermatitis herpetiformis - management of?

A

a/w coeliac disease and therefore is treated with a gluten free diet

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14
Q

Eryispelas- caused by which organism?

A

Strep pyogenes - produces an endotoxin!

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15
Q

What 2 drugs can cause a “drug induced lupus”?

A

Most common causes
procainamide
hydralazine

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16
Q

Management of acne rosacea?

A

Topical ivermectin + oral doxycycline for papules and pustules.

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17
Q

What is an example of a vitamin D analgoue for psoriasis?

A

vitamin D analogues include calcipotriol (Dovonex), calcitriol and tacalcitol

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18
Q

What is the first line mx for Psoriasis?

A

Topical steroid and topical Vit D analogue

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19
Q

What is the management for acne? (stepwise)

A
  1. Topical retinoid and topical fusidic acid
  2. Oral antibiotics
  3. Oral COCP
  4. referral for isotretrioin
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20
Q

Impetigo management

A
  1. Topical hydrogen peroxide
  2. Topical fusidic acid
  3. If more extensive PO Flucoxacillin
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21
Q

What are the causes of scarring alopecia? (4)

A

Trauma/burns, radiotherapy, lichen planus, discoid lupus, tinea capitis

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22
Q

What is the treatment for Fungal nail infections, first and second line?

A

First line- topical amolofine
Second line- Oral terbinafine

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23
Q

What is the name of the rash seen in Lymes disease?

A

Erythema chronicum migrans (typical bulls eye rash )

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24
Q

What drug exacerbates plaque psoriasis?

A

Propanolol

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25
What are the features of lichen planus?
Purple rash on flexor surfaces, mucosal involvement, kobner phenonemum where sites of trauma get a white lacy rash.
26
Treatment of lichen planus?
Hydrocortisone oitment is first line
27
What is first line for acne rosacea?
Topical ivermetacin
28
How to diagnose tinea capitis?
Woods lamp and scalp scrapings
29
What is first line for psoriasis?
Steroid and Vit D analogue ( eg calcitriol)
30
What are the side effects of retinoids?
Sore lips, hair thinning, DRY SKIN, DRY EYES, nose bleeds, photosensitivity.
31
What is the steroid ladder?
Hydrocortisone Eumovate Betnovate Dermovate
32
What is the cause of Pityriasis versicolor?
Malassezia fufur
33
Trichophyton rubrum and Trichophyton verrucosum cause which skin condition?
Tinea corporis
34
Management of urticaria?
Non sedating antihistamines Prednisolone if very severe.
35
Drug induced lupus - what drugs are common? - What antibodies (2)
procainamide (antiarrythimic) and Hydralazine Antibodies: Antihistone and ANA
36
What antibodies in Dermatomyositis?
anti-Mi-2 antibodies Anti Jo 1
37
Anti centromere antibodies are associated with?
limited cutaneous systemic sclerosis
38
How might a BCC be described?
Pearly edges **Central ulceration**
39
What are the characteristics of these types of hair loss? - Alopecia areata - Tinea Capitis - Telogen effluvium - Anlagen efflulvium - Scarring (cicatricial) alopecia
- Alopecia areata - patchy hair loss. Scalp is healthy - Tinea Capitis - Patchy, scalp is scaly and itchy - Telogen effluvium- Diffuse hair loss MONTHS after precipitant - Anlagen efflulvium - Diffuse hair loss WEEKS after precipitant - Scarring (cicatricial) alopecia - permanent alopecia caused by inflammatory disorders eg scleroderma
40
What is tinea pedis? vs Tinea Unguium
Tinea pedis: Athletes foot. itchy skin between toes. Tina Ungium- fungal nail infection
41
What are the treatment options for actinic keratosis?
fluorouracil cream (Topical 5FU) Topical diclofenac Cryotherapy
42
What is scabies caused by?
Sarcoptes scabiei (house mite)
43
What is the characteristic rash caused by Scarlet Fever?
Fine punctuate rash Spares area around mouth / palms and soles Starts on Torso Sandpaper rash
44
What is the treatment for scalp psoriasis?
1. Topical corticosteroid 2. Vit D analogue (calciproctiol) with steroid
45
Cutaneous larva migrans is also known as?
Hookworm! Itchy From contaminated soil/ fecal matter
46
Acanthosis nigricans is a/w with which malignancy?
Gastric ca.
47
Dermatomyositis- a/w which malignancy ?
Lung and ovary
48
Migratory thrombophlebitis- a/w which malignancy?
Pancreatic ca.
49
Necrolytic migratory erythema- a/w which malignancy?
Glucagonoma
50
Pyoderma gangrenosum (bullous and non-bullous forms) - a/w which malignancy?
Myeloproliferative disorders
51
Lichen Planus can be precipitated by which 3 main drugs?
Gold Quinine Thiazides
52
Alopecia Areata - what is it? and how does it present? Treatment
Presumed autoimmune Hair loss in circular pattern Non scarring hair loss Exclamation mark hairs Can be treated with potent topical steroid
53
Where do dermoid cysts occur and in which population?
AKA Cystic Teratoma Children Lateral aspect of eyebrow
54
Epidermoid and pilar cysts (sebaceous cysts) - where do they present? - defining feature?
Present ears/ scalp/ upper arm Not soles or palms. Defining feature is the punctum in the middle
55
What are the topical therapies for Acne Roscea?
Topical Ivermethacin Topical Brimiodine Topical Metronidazole Oral- Doxycline
56
Livedo retciualris is associated with which conditions
RA Polyarteritis nodosm Lupus Antiphospholipid Ehlers Danos
57
What are the management options for Acne Rosacea?
Topical Brimodine (PRN Alpha agonist) Topical Invermethacin Topical Metronidazole Oral Doxycycline
58
What are the oral antibiotics for acne vulgaris?
Lymecycline/ Doxycycline
59
What would Oxytetracycline be used for? (what are the indications on the BNF?)
Acne vulgaris Rosacea
60
Side effect of Minocyclidine
Facial pigmentation
61
Anti Jo is associated with what?
Dermatomyositis
62
What are some side effects of oral Isotretoin?
Most common- dry lips/ dry skin Hair thinning Suicidal ideation Nose bleeds Photosensitivity
63
Which rash gives a the hearld patch?
Pityriasis Roscea has the characteristic hearld patch
64
What is first line for impetigo?
Topical hydrogen peroxide Second line- Fusidic acid (or Fusidic acid is first line if widespread disease or immunosuppressed)
65
Pyoderma gangrenosum is a/w with?
Inflammatory bowel disease RA/SLE Haematological GPA
66
What is a classic history for discoid eczema?
More common in winter months Can leave hyperpigmentation/ hypopigmentation More common on extremities Can get crusty/ vesicles etc
67
Features of pyogenic granuloma
Occurs as a result of trauma eg thorn or splinter
68
Management of Tinea Capitis
oral griseofulvin Tinea wapitis (ring worm) fungal infection - can be scarring. V infectious can spread between children

Tomakesense 3 (15 decks)

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