Dermatology

Question 0

Black dot

Answer 0

Tinea Capitis

Question 1

Darier sign

Answer 1

Mastocytosis

Question 2

Tx of tinea capitis

Answer 2

Griseofulvin. No need to check labs in heathy kid. Alternatives = fluconazole, itraconazole

Question 3

Exclamation point hairs

Answer 3

Alopecia areata

Question 4

Breakage of hairs with tapering

Answer 4

Alopecia areata

Question 5

Generalized thinning

Answer 5

Telogen effluvium

Question 6

Varying hair length in a given area

Answer 6

Trichotillomania

Question 7

Many neutrophils, no bacteria

Answer 7

Pustular Melanosis

Question 8

Eosinophils on wright stain

Answer 8

Erythema toxicum

Question 9

Many PMNs, no bacteria

Answer 9

Miliria rubra

Question 10

Targetoid lesions on hands, feet, palms, soles

Answer 10

Erythema multiforme. Self limited. Most common cause : HSV

Question 11

Which is fixed: urticaria or e. multiforme?

Answer 11

E. Multiforme

Question 12

Lamotrigine, carbamazepine, phenytoin, phenobarbital

Answer 12

Cause SJS or TEN

Question 13

Sulfa abx, PCN, cephalosporins, doxycycline/tetra/mino,

Answer 13

Can cause SJS/TEN

Question 14

Most common infectious cause of SJS or TEN. (EM Major)

Answer 14

Mycoplasma pneumonia

Question 15

Large congenital melanocytic nevi greater than 20 cm

Answer 15

Increased risk of melanoma (5-15%)

Question 16

Tx with surgical excision prior to puberty 2/2 small risk of basal cell carcinoma

Answer 16

Nevus sebaceous (yellow/ pink waxy)

Question 17

Perianal and perioral red rash

Answer 17

Zinc deficiency ( acrodermatitis enteropathica)

Question 18

Flaky paint dermatitis

Answer 18

Kwashiorkor

Question 19

Rheus dermatitis is not spread by the fluid contained in the vesicular or bullous lesion

Answer 19

True

Question 20

Most common cause of erythema multiforme minor

Answer 20

HSV

Question 21

Most common infectious cause of erythema multiforme major (SJS)

Answer 21

Mycoplasma pneumonia

Question 22

Causes bullous impetigo

Answer 22

Staph and MRSA