Cellulitis etc Flashcards
- huge blisters/bulla
- painless
- liver disease or med-induced
Porphyria Cutania Tarda
- on sun exposed areas
- purple-red plaques w/scales
- if pull off scales, spiny projections
- med induced
Discoid Lupus
- pustules with hair
- abscess if no tx
- Staph Aureus (G+) or Pseudomonas (G-)
- can get G- when tx’g acne
- differentiate bacterial or non
Folliculitis
- 1 target lesion
- raised, warm, red with central clearing
- how to differentiate from Tinea
Erythema Migrans
Tinea has scales and is all clear inside, no Target lesion
Do KOH
Many target lesions
Usually very itchy
Many causes but Herpes most common
Erythema Multiforme (son)
Morbilliform rash (looks like measles, maculopapular) Stop drug
Drug Eruption
Fixed DE: mouth genitals and face
Cellulitis on cheeks Warm to touch Labs: high WBC Tx: IV AB + hospital Dx: edema, spreading, well-circumscribed pupule/plaque
Erysipelas
Red, swelling, streaks of red Sick: chills, pain DM IV/Hospital Labs: G+ G- cultures
Cellulitis
Cellulitis is deeper than
Erysipelas
- honey colored crust over top of lesion/vesicle
- mouth, nose and autoinoculation
- non-bullous is most common
- mild: bactroban
- mod-severe: oral AB
Impetigo
Staph Aureus or Strep cause
Impetigo
B-hemolytic Strep and Staph causes
Erysipelas
Staph or group A strep cause
cellulitis
Borrelia Burgdorferi
Erythema Migrans
- blisters (bullae) slough off
- > 30% skin
- due to meds, mycoplasma/CMV in kids
- prodrome 1-3 days before blisters
- 102 fever
Toxic Epidermal Necrolysis (TEN)
Blisters slough off
10% skin
Steven-Johnson Syndrome (SJS)
- very itchy, vesicles
- 75% gluten-sensitive
- Tx: Dapsone (AB)
Dermatitis Herpetiformis
stage 1 and stage 4
Pressure Ulcers
1: intact but red
4: full thickness skin loss, can see bone
- adrenal vs ACTH (2ndary)
- stretch marks, atrophy
- purpura?
- steroid acne and hirsutism (more hair)
(moon facie/buffalo hump - Cushings)
Glucocorticoids
- increased melanin
- adrenal failure (Addison’s)
ACTH (adrenocorticotropic hormone)
- increased sebum
- acne
- hirsutism (hair)
- allopecia
Androgens (testosterone)
- hyperpigmentation and
- hyperplasia
Growth Hormone
- Ins resistant DM
- brown velvety skin on neck and axilla
Acanthosis Nigricans
increased sweating
norepinephrine (NE)
increased sweating
warm, moist skin
Graves’ disease
Hyperthyroid
Graves’ disease is due to
high thyroid
dry cool skin and thickening
hypothyroid
erysepilas is and is caused by
cellulitis on cheeks
ER - IV AB and Hosp
by staph and (group A) beta hemolytic strep
Impetigo is cause by
Staph Aureus and strep
Cellulitis is caused by
Staph and Group A (B hemolytic) step
Folliculitis is caused by
Staph Aureus(G+) and Pseudomonas (G-)
Erythema Multiforme Tx
Sx and topical/sys steroid
Antiviral if early
Types of Erythema Multiforme
SJS
Urticaria without central target
Fixed drug eruptionb
Pemphigoid - autoimmune
Impetigo Tx
mild: topical AB (bactroban)
mod-sev: oral AB (Anti-staph…)
