Dermatology by Brian

Question 1

Why should actinic keratosis be treated?

Answer 1

It may progress to squamous cell carcinoma.

Question 2

What is the first line treatment for rosacea?

Answer 2

• Metronidazole

- tetracycline is a close second

Question 3

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

Answer 3

-on the head and neck

Question 4

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

Answer 4

-Lichen planus

Question 5

What are the ABC’s of melanoma?

Answer 5

• Asymmetry
• border
• color
• diameter
• elevation/irregularity
• evolving

Question 6

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

Answer 6

-Psoriasis

Question 7

What is the key indicator for the progress of melanoma?

Answer 7

-thickness of the lesion

Question 8

What is the treatment for melanoma?

Answer 8

-wide local excision

Question 9

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

Answer 9

-Seborrheic kertosis

Question 10

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?

Answer 10

-Atopic dermatitis

Question 11

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

Answer 11

-Candida diaper rash

Question 12

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

Answer 12

-Nummular eczema

Question 13

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?

Answer 13

-Perioral dermatitis

Question 14

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

Answer 14

-Seborrheic dermatitis

Question 15

How do you treat a stasis dermatitis?

Answer 15

-Compression stockings

Question 16

Tapioca blisters should make you think of what diagnosis?

Answer 16

-Dyshidrosis - these are usually on the hands and feet.

Question 17

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

Answer 17

-Herpes simplex virus

Question 18

How do you treat lichen simplex chronicus?

Answer 18

-Get the patient to stop scratching

Question 19

A herald patch should make you think of what diagnosis?

Answer 19

-Pityriasis rosea

Question 20

How should you treat pityriasis rosea?

Answer 20

-Reassurance

Question 21

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

Answer 21

-Erythema multiforme

Question 22

Rinophyma should make you think of what diagnosis?

Answer 22

-Acne rosacea

Question 23

Silvery Scales should make you think of what diagnosis?

Answer 23

-Psoriasis

Question 24

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

Answer 24

-Guttate psoriasis

Question 25

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

Answer 25

-Extensor

Question 26

What is the first line treatment for tinea corporis?

Answer 26

-Topical azoles

Question 27

What are the two most common organisms responsible for cellulitis?

Answer 27

-Strep and staph

Question 28

Pitting nails are associated with what dermatologic disorder?

Answer 28

-Psoriasis

Question 29

Nummular eczema is most like what other dermatological condition?

Answer 29

-Atopic dermatitis

Question 30

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

Answer 30

-Impetigo

Question 31

What two herpes viruses are most responsible for condyoma acuminata?

Answer 31

-HSV 6 and 11

Question 32

A double commode is indicative of what diagnosis?

Answer 32

-Hidradenitis suppurativa

Question 33

What is the best treatment for molluscum contagiosum?

Answer 33

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

Question 34

Hyperpigmented velvety plaques should make you think of what diagnosis?

Answer 34

-Acantosis nigricans

Question 35

Melasma is most often found in what patient population?

Answer 35

-Women of childbearing age

Question 36

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

Answer 36

-Scabies

Question 37

What is the first step in treating atopic dermatitis?

Answer 37

-behavioral modifications--reduce bathing, use only soap on face and genitals, use natural breathing fabrics.

Question 38

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

Answer 38

-Debridement, the venom causes tissue necrosis.

Question 39

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

Answer 39

-Psoriasis

Question 40

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

Answer 40

-Vitiligo

Question 41

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

Answer 41

-Tinea versicolor

Question 42

What dermatologic finding is associated with insulin insensitivity?

Answer 42

-Acanthosis nigricans

Question 43

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

Answer 43

-Basal cell carcinoma

Question 44

What dermatologic finding is associated with asthma?

Answer 44

-Atopic dermatitis

Question 45

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

Answer 45

-Pityriasis rosea

Question 46

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

Answer 46

-Aopecia areata

Question 47

What is the first line treatment for genital warts?

Answer 47

-Imiquimod (Aldara)

Question 48

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

Answer 48

-Molluscum contagiousum

Question 49

What is the best lab test for scabies?

Answer 49

-Microscopic examination under oil immersion