Cellulitis etc

Question 0

• huge blisters/bulla
• painless
• liver disease or med-induced

Answer 0

Porphyria Cutania Tarda

Question 1

• on sun exposed areas
• purple-red plaques w/scales
• if pull off scales, spiny projections
• med induced

Answer 1

Discoid Lupus

Question 2

• pustules with hair
• abscess if no tx
• Staph Aureus (G+) or Pseudomonas (G-)
• can get G- when tx’g acne
• differentiate bacterial or non

Answer 2

Folliculitis

Question 3

• 1 target lesion
• raised, warm, red with central clearing
• how to differentiate from Tinea

Answer 3

Erythema Migrans
Tinea has scales and is all clear inside, no Target lesion
Do KOH

Question 4

Many target lesions
Usually very itchy
Many causes but Herpes most common

Answer 4

Erythema Multiforme (son)

Question 5

Morbilliform rash (looks like measles, maculopapular)
Stop drug

Answer 5

Drug Eruption

Fixed DE: mouth genitals and face

Question 6

Cellulitis on cheeks
Warm to touch
Labs: high WBC
Tx: IV AB + hospital
Dx: edema, spreading, well-circumscribed pupule/plaque

Answer 6

Erysipelas

Question 7

Red, swelling, streaks of red
Sick: chills, pain
DM
IV/Hospital
Labs: G+ G- cultures

Answer 7

Cellulitis

Question 8

Cellulitis is deeper than

Answer 8

Erysipelas

Question 9

• honey colored crust over top of lesion/vesicle
• mouth, nose and autoinoculation
• non-bullous is most common
• mild: bactroban
• mod-severe: oral AB

Answer 9

Impetigo

Question 10

Staph Aureus or Strep cause

Answer 10

Impetigo

Question 11

B-hemolytic Strep and Staph causes

Answer 11

Erysipelas

Question 12

Staph or group A strep cause

Answer 12

cellulitis

Question 13

Borrelia Burgdorferi

Answer 13

Erythema Migrans

Question 14

• blisters (bullae) slough off
• > 30% skin
• due to meds, mycoplasma/CMV in kids
• prodrome 1-3 days before blisters
• 102 fever

Answer 14

Toxic Epidermal Necrolysis (TEN)

Question 15

Blisters slough off

10% skin

Answer 15

Steven-Johnson Syndrome (SJS)

Question 16

• very itchy, vesicles
• 75% gluten-sensitive
• Tx: Dapsone (AB)

Answer 16

Dermatitis Herpetiformis

Question 17

stage 1 and stage 4

Answer 17

Pressure Ulcers

1: intact but red
4: full thickness skin loss, can see bone

Question 18

• adrenal vs ACTH (2ndary)
• stretch marks, atrophy
• purpura?
• steroid acne and hirsutism (more hair)
  (moon facie/buffalo hump - Cushings)

Answer 18

Glucocorticoids

Question 19

• increased melanin

- adrenal failure (Addison’s)

Answer 19

ACTH (adrenocorticotropic hormone)

Question 20

• increased sebum
• acne
• hirsutism (hair)
• allopecia

Answer 20

Androgens (testosterone)

Question 21

• hyperpigmentation and

- hyperplasia

Answer 21

Growth Hormone

Question 22

• Ins resistant DM

- brown velvety skin on neck and axilla

Answer 22

Acanthosis Nigricans

Question 23

increased sweating

Answer 23

norepinephrine (NE)

Question 24

increased sweating
warm, moist skin
Graves’ disease

Answer 24

Hyperthyroid

Question 25

Graves’ disease is due to

Answer 25

high thyroid

Question 26

dry cool skin and thickening

Answer 26

hypothyroid

Question 27

erysepilas is and is caused by

Answer 27

cellulitis on cheeks
ER - IV AB and Hosp
by staph and (group A) beta hemolytic strep

Question 28

Impetigo is cause by

Answer 28

Staph Aureus and strep

Question 29

Cellulitis is caused by

Answer 29

Staph and Group A (B hemolytic) step

Question 30

Folliculitis is caused by

Answer 30

Staph Aureus(G+) and Pseudomonas (G-)

Question 31

Erythema Multiforme Tx

Answer 31

Sx and topical/sys steroid

Antiviral if early

Question 32

Types of Erythema Multiforme

Answer 32

SJS
Urticaria without central target
Fixed drug eruptionb
Pemphigoid - autoimmune

Question 33

Impetigo Tx

Answer 33

mild: topical AB (bactroban)

mod-sev: oral AB (Anti-staph…)