Dermatology Flashcards

1
Q

Why should actinic keratosis be treated?

A

It may progress to squamous cell carcinoma.

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2
Q

What is first line treatment for rosacea?

A

Metronidazole, tetracycline is probably a close second.

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3
Q

Where are 90% of basal cell lesions found on the body?

A

On the head and neck

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4
Q

Purple, pruritic, polygonal, papules on physical exam should make you think of what diagnosis?

A

Lichen planus

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5
Q

What are the ABC’s of melanoma?

A
  • Asymmetry,
  • Border,
  • Color,
  • Diameter,
  • Elevation/irregularity, evolving
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6
Q

A positive Auspitz sign should make you think of what diagnosis?

A

Psoriasis

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7
Q

What is the key indicator for the prognosis of melanoma?

A

Thickness of the lesion

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8
Q

What is the treatment for melanoma?

A

Wide local excision

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9
Q

A waxy stuck on appearance should make you think of what diagnosis?

A

Seborrheic keratosis

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10
Q

A 5 year old presents in early January with a red itchy rash behind his knees. You notice it on the flexor surfaces of his elbows as well. What is the most likely diagnosis?

A

Atopic dermatitis

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11
Q

The term satellite lesion should make you think of what diagnosis?

A

Candida diaper rash

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12
Q

Coin-shaped plaques should make you think of what diagnosis?

A

Nummular eczema

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13
Q

A 30 year old female presents with pustules on her face that spare the vermilion border. In her history she has been using topical steroids. What is the most likely diagnosis?

A

Perioral dermatitis

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14
Q

A patient presents with flaky skin in the nasolabial folds and in her hair. What is the most likely diagnosis?

A

Seborrheic dermatitis

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15
Q

How do you treat a stasis dermatitis?

A

Compression stockings

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16
Q

Tapioca blisters should make you think of what diagnosis?

A

Dyshidrosis - these are usually on the hands and feet

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17
Q

How do you treat dyshidrosis?

A

Topical steroids

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18
Q

Giant cells on a Tzanck smear should make you think of what diagnosis?

A

Herpes simplex virus

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19
Q

How do you treat lichen simplex chronicus?

A

Get the patient to stop scratching it.

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20
Q

A herald patch should make you think of what diagnosis?

A

Pityriasis rosea

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21
Q

How do you treat pityriasis rosea?

A

Reassurance

22
Q

A patient with a history of herpes now presents with a target lesion. What is the most likely diagnosis?

A

Erythema multiforme

23
Q

Rhinophyma should make you think of what diagnosis?

A

Acne rosacea

24
Q

Silvery scales should make you think of what diagnosis?

A

Psoriasis

25
Q

A teardrop lesion after a course of strep throat should make you think of what diagnosis?

A

Guttate psoriasis

26
Q

Are lesions from psoriasis typically found on flexor or extensor surfaces?

A

Extensor

27
Q

What is the first line treatment for tinea corporis?

A

Topical azoles

28
Q

What are the two most common organisms responsible for cellulitis?

A

Strep and Staph

29
Q

Pitting nails are associated with what dermatologic disorder?

A

Psoriasis

30
Q

Nummular eczema is most like what other dermatological disorder?

A

Atopic dermatitis

31
Q

Honey-colored crusts should make you think of what diagnosis?

A

Impetigo

32
Q

What two herpes viruses are most responsible for condyloma acuminata?

A

HSV 6 and 11

33
Q

A double comedone is indicative of what diagnosis?

A

Hidradenitis suppurativa

34
Q

What is the best treatment for molluscum contagiosum?

A

It is self limiting, but can be removed if patient really wants it.

35
Q

What is the treatment for seborrheic keratosis?

A

It is benign so there is no need to treat it. Lesions may be removed if unsightly.

36
Q

Hyperpigmented velvety plaques should make you think of what diagnosis?

A

Acanthosis nigricans

37
Q

Melasma is most often found in what patient population?

A

Women of childbearing age

38
Q

Extremely pruritic lesions with burrows in runs should make you think of what diagnosis?

A

Scabies

39
Q

What is the first step in treating atopic dermatitis?

A

Behavioral modifications - reduce bathing, only use soap on face and genitals, use natural breathable fabrics

40
Q

What is the treatment for a bad brown recluse spider bite?

A

Debridement, the venom causes tissue necrosis.

41
Q

Salmon-colored scales should make you think of what diagnosis?

A

Psoriasis

42
Q

Depigmented patches of skin should make you think of what diagnosis?

A

Vitiligo

43
Q

Spaghetti and meatballs on KOH prep should make you think of what diagnosis?

A

Tinea versicolor

44
Q

What dermatologic finding is associated with insulin insensitivity?

A

Acanthosis nigricans

45
Q

A slowly growing nodule with a central depression and a pearly border should make you think of what diagnosis?

A

Basal cell carcinoma

46
Q

What dermatologic finding is associated with asthma?

A

Atopic dermatitis

47
Q

A christmas tree pattern should make you think of what diagnosis?

A

Pityriasis rosea

48
Q

Oval patches of hair loss should make you think of what diagnosis?

A

Alopecia areata

49
Q

What is the first line treatment for genital warts?

A

Imiquimod (Aldara)

50
Q

A pearly dome-shaped lesion with a central umbilication should make you think of what diagnosis?

A

Molluscum contagiousum

51
Q

What is the best lab test for scabies?

A

Microscopic examination under oil immersion