Dermatologic Disorders

Question 1

Bacterial Skin Conditions

Answer 1

• impetigo
• cellulitis
• folliculitis or furuncle

Question 2

Impetigo Symptoms

Answer 2

• honey colored crusts (non bullous)
• spread thru contact and droplet
• itching, spread of lesion to surrounding skin
• weakness, fever, diarrhea with bullous form

Question 3

Management of Impetigo

Answer 3

• topical abx
• oral abx if spread to family
• bullous in infant - PCN
• hygiene
• exclude from daycare for 24 hours

Question 4

Clinical Findings of Cellulitis

Answer 4

• previous skin disruption at site
• fever, pain, malaise, irritability, anorexia, chills
• recent URI
• anal itching, stool retention, constipation
• redness
• erysipelas is a superficial variant that is tender, bright red, sharp margins and has an “orange peel” look

Question 5

Management of Cellulitis

Answer 5

• hospitalization in febrile infant or toxic looking child
• abx therapy depending on organism

Question 6

Management of Folliculitis or Furuncle

Answer 6

• warm compresses
• topical keratolytics
• topical abx
• oral abx
• proper hygiene, avoid shaving

Question 7

Types of Fungal Infections

Answer 7

• Candidiasis
• Tinea capitis (head)
• Tinea corporis (body)
• Tinea cruris (gentials)
• Tinea pedis (feet)
• Tinea versicolor (back)

Question 8

Diagnostic Studies for Fungal Infections

Answer 8

KOH scrapings

Question 9

Candidiasis Treatment

Answer 9

• topical antifungals
• hydrocortisone if severe inflammation
• keep dry

Question 10

Management of Tinea Capitis

Answer 10

• Griseofulvin for 6-8 weeks (monitor LFTs, can be bad for liver)
• Shampoo with selenium sulfide

Question 11

Clinical Findings of Tinea Corporis

Answer 11

• lesions spread peripherally and clear centrally
• multiple secondary lesions may merge
• well demarkated boder
• KOH looks like spaghetti and meatballs

Question 12

Management of Tinea Corporis

Answer 12

• topical antifungals
• Griseofulvin
• identify and treat contacts
• no daycare or school for 24 hours

Question 13

Management of Tinea Cruris

Answer 13

• topical antifungals
• Griseofulvin

Question 14

Management of Tinea Pedis

Answer 14

• keep feet dry
• antifungal powder
• rinse feet with water/vinegar
• wet compresses for acute, vesicular lesions

Question 15

Cause of Tinea Versicolor

Answer 15

Malassezia furfur

Question 16

Management of Tinea Versicolor

Answer 16

• selenium sulfide lotion or shampoo
• oral antifungal if resistant
  ** absence of flaking means effective treatment

Question 17

Viral Infections of the Skin

Answer 17

• Herpes simplex
• Molluscum contagiosum

Question 18

Diagnostic Studies for Herpes Simplex

Answer 18

• Tzanck smear
• Viral cultures
• ELISA serology
• PCR tests

Question 19

Management of Herpes Simplex

Answer 19

• burrow solution compress
• acyclovir
• abx for secondary infection
• viscous lidocaine
• benadryl/Mg rinse

Question 20

Management of Contact Dermatitis

Answer 20

• burrow solution
• emollients to restore moisture
• topical corticosteroids
• oral antihistamines

Question 21

Clinical Findings of Pityriasis Rosea

Answer 21

• christmas tree pattern
• itching
• pale, pink lesions

Question 22

Management of pityriasis rosea

Answer 22

• calamine lotions
• aveeno
• antihistamines
• emollients
• minimal sun
• oral erythromycin

Question 23

Management of Psoriasis

Answer 23

• minimal sun exposure
• emollient creams
• topical steroids
• tar or keratolytic shampoos
• mineral oil to soften plaques
• refer to dermatologist