Dermatology Flashcards

1
Q

Diaper Dermatitis etiologies

A
  1. wearing diapers: contact dermatitis, miiaria (heat/sweat rash, blockage of eccrine sweat glands), candida (moist conditions)
  2. rash in diaper area as well as other areas: atopic dermatitis, seborrheic dermatitis
  3. affects diaper area irrespective of diaper use: scabies, bullous impetigo
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2
Q

management of diaper dermatitis

A
  • frequent diaper changes every 2 hours or when soiled
  • open air exposure
  • topical zinc oxide or petroleum jelly
  • 1% hydrocortisone cream (< 2 wk use)
  • may need topical Abx
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3
Q

Perioral Dermatitis Clinical Manifestations

A

MC seen in young women; may have a history of topical corticosteroid use

papulopustules on erythmetous base which may become confluent into plaques and scales

classically spares the vermillion border

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4
Q

Management of Perioral Dermatitis

A

topical metronidazole or erythromycin

oral tetracyclines

avoid topical corticosteroids

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5
Q

Types I - IV of Cutaneous Drug Reactions

A
  • Type I: IgE-mediated, ex: urticaria and angioedema. IMMEDIATE
  • Type II: cytotoxic, Ab-mediated (drugs in combo with cytotoxic antibodies cause cell lysis)
  • Type III: immune antibody-antigen complex. Ex: drug mediated vasculitis and serum sicness
  • Type IV: DELAYED (cell-mediated) – morbilliform reactions, Ex: Erythema Multiforme
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6
Q

Clinical Manifestations of Cutaneous Drug Reactions

A
  1. exanthematous/morbilliform rash: MC skin eruptions. (type IV delayed) generalized distribution of bright red macules and papules that coalesce to form plaques. Rash typically begins 2 - 14 days after medication initiation
    ex: antibiotics, NSAIDs, allopurinol, thiazide diuretics
  2. Urticarial: (type I immediate) occurs within minutes to hours after drug administration
    ex: antibiotics, NSAIDs, opiates and radiocontrast media
  3. Erythema Multiforme (Type IV delayed) target lesions may not always be present in drug-induced EM

MC Drugs: Sulfonamides, penicillins, phenobarbital, dilantin

fever, abdominal pain, and joint pain may accompany the cutaneous drug reaction

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7
Q

Management of Cutaneous Drug Reactions

A
  1. dicontinue offending medication
  2. Exanthematous/Morbiliform: oral antihistamines
  3. Drug-induced urticaria/angioedema: systemic corticosteroids, antihistamines
  4. Erythema Minor: symptomatic therapy
  5. Anahylaxis: intramuscular epi
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8
Q

What is Lichen Planus?

A

idopathic cell-mediated immune response

increased incidence with Hepatitis C

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9
Q

Clinical Manifestations of Lichen Planus

A

5 Ps: Purple, Polygonal, Planar, Pruritic Papules with fine scales and irregular borders

can develop Koebner’s Phenomenon: new lesions at sites of trauma (also seen in psoriasis)

Wickham Striae: fine white lines on the skin lesions or on oral mucosa. nail dystrophy

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10
Q

Management of Lichen Planus

A

topical corticosteroids 1st line

2nd line: PO steroids, UVB therapy, retinoids. rash usually resolves spontaneously in 8 - 12 months

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11
Q

What is Pityriasis Rosea?

A

maculopapular rash with uncertain etiology (possibly associated with viral infections – HHV7)

primarily older children/young adults

increased incidence in the spring/fall

can mimic syphillis so order RPR if the patient is sexually active

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12
Q

Clinical Manifestations of Pityriasis Rosea

A

Herald Patch** (solitary salmon-colored macule) on the trunk 2 - 6 cm in diameter

general exanetham 1 - 2 weeks later: smaller, very pruritic 1 cm round/oval salmon-colored papules with white circular (collarette) scaling along cleavage lines in a Christmas Tree Pattern

(confined to trunk and proximal extremities (face usually spared)

resolves in 6 - 12 weeks

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13
Q

Management of Pityriasis Rosea

A

none needed

pruritus: PO antihistamines, topical corticosteroids, oatmeal baths

possible UVB therapy if severe

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14
Q

What is the most common cause of Stevens-Johnson Syndrome/TEN?

A

MC after drug eruptions: especially sulfa and anticonvulsant meds

also NSAIDs, Allopurinol, antibiotics

infections are a less common cause; Ex: Mycoplasma, HIV, HSV

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15
Q

What is the difference between Stevens-Johnson Syndrome and TEN?

A

SJS = sloughing < 10% BSA

TEN = sloughing > 30% BSA, may develop skin necrosis

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16
Q

clinical manifestations of SJS and TEN

A

fever and URI Sx ► widespread blisters begin on trunk/face, erythematous/pruritic macules >= 1 mucous membrane involvement with _epidermal detachment*_ (+ Nikolsky sign)

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17
Q

Management of SJS and TEN

A

treat like severe burns: burn unit admission, pain control, withdrawal of offending med, fluid and electrolyte replacement, wound care

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18
Q

What is Erythema Multiforme?

A

acute self-limited Type IV hypersensitivity reaction

MC in young adults 20 - 40 yo

skin lesions usually evolve over 3 - 5 days and persist for about 2 weeks

Associations: Herpes Simplex Virus MC**, Mycoplasma, S. pneumo

meds: sulfa drugs, beta-lactams, Phenytoin, Phenobarbital

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19
Q

Clinical Manifestations of Erythema Multiforme

A

TARGET lesions classic**

dull, “dusty-violet” red, purpuric macules/vesicles or bullae in the center surrounded by pale edematous rim and peripheral red halo. often febrile

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20
Q

What is the difference between EM minor and EM major?

A

EM Minor: target lesions distributed acrally (distal portion of limbs–hands and feet–and head–ears and nose); no mucosal membranes involved

EM Major: target lesions with involvement of >= 1 mucous membrane (oral, genital, or ocular mucosa) < 10% BSA acrally → centrally (no epidermal detachment)

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21
Q

Management of Erythema Multiforme

A

Symptomatic

discontinue offending drug

antihistamines

analgesics

skin care

steroid/lidocaine/diphenhydramine mouthwash for oral lesions

systemic corticosteroids if severe

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22
Q

What are the main pathophysiological factors of Acne Vulgaris?

A
  1. increased sebum production: î androgens increase sebaceous gland activity

(MC after puberty, î androgens PCOS and Cushing’s Disease)

  1. Clogged sebaceous glands: due to increased proliferation of follicular keratinocytes
  2. Propionbacterium acne overgrowth: P. acne is part of the normal flora that overgrows in blocked pores ⇒ lipase production by P. acne which converts sebum into inflammatory fatty acids that damage healthy cells
  3. inflammatory response
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23
Q

Clinical Manifestations of Acne Vulgaris

A

commonly seen in areas with î sebaceous glands (face, back, chest, upper arms)

  1. comedones: small, non-inflammatory bumps from clogged pores

open comedones: (blackheads) – incomplete blockage

closed comedones (whiteheads) – complete blockage

2. inflammatory: papules or pustules surrounded by inflammation

3. nodular or cystic acne: often heals with scarring

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24
Q

Diagnosis of Acne Vulgaris (mild, moderate, severe)

A

Mild: comedones (+- small amounts of papules &/or pustules)

Moderate: comedones, larger amounts of papules and pustules

Severe: nodular (>5 mm) or cystic acne

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25
Management of Mild Acne Vulgaris
_Mild Acne Treatment_ ***topical retinoids******, benzoyl peroxide, topical Abx, OCPs*** **Topical Retinoids:** (Retin-A, Adapalene) may be used alone or in combo with other meds **Benzoyl Peroxide:** decreases Propionbacterium concentration and reduces inflammation (SE: erythema, dermatitis) **Topical Abx:** (Clindamycin) MC used with benzoyl peroxide to reduce resistance **OCPs:** reduce androgen production reducing sebum production
26
Management of Moderate Acne
_Moderate Acne Treatment_ ***Tx for mild acne + oral Abx,*** +/- anti-androgen agents **oral antibiotics:** tetracyclines such as **minocycline or doxycycline** **spironolactone:** anti-androgen effects. spironolactone is a K+ sparing diuretic
27
Management of Severe Acne
_Treatment of Severe Acne_ **Isotretinoin:** affects all of the 4 pathophysiologic mechanisms of acne SE: *psych side effects, hepatitis and _increased TGs/cholesterol_**, arthralgias, leukopenia, premature long bone closure, dry skin.**Highly Teratogenic\*\*\*** (must obtain at least 2 pregnancy tests prior to initiating treatment and then monthly), must committ to at least two forms of contraception (beginning one month prior to initiation and one month after disconinuation)*
28
What is pediculosis?
lice
29
What is the term for head lice? body lice? pubic lice?
pediculosis humanus capitus pediculosis humanus corporis phthirus pubis
30
Clinical Manifestations of Pediculosis capitus/corporis/phthirus pubis
**intense itching\*** (especially occipital area) and papular urticaria near lice bites **nits\*** white oval-shaped egg capsules at the base of the hair shaft, removed with a comb
31
Management of pediculosis (lice)
**permethrin topical drug of choice\*\*** (anti-parasite) _capitus: permethrin shampoo_ left on x 10 minutes _pubis/corporis: permethrin lotion_ at least 8 - 10 hours (safe in children 2 years and older) 2nd line: **lindane:** ***neurotoxic*** (headaches, seizures -- do not use after showering) *Bedding/clothing are laundered in hot water with detergent and dried in hot drier for 20 minutes. toys that cannot be washed should be placed in air-tight plastic bags x 14 days*
32
Where do scabies like to burrow?
intertriginous zones including **_web spaces_** between fingers/toes (where 2 skin areas may touch or rub together), scalp
33
What causes the hypersensitivity reaction with scabies?
female mites **burrow into the skin to lay eggs, feed, and defecate** (scybala are the fecal particles that precipitate a hypersensitivity reaction in the skin)
34
How long can scabies survive off the human body?
scabies cannot survive off the human body for more than 4 days
35
Clinical Manifestations of Scabies
**_intensely pruritic lesions\*_** papules, and vesicles and **LINEAR BURROWS** -- commonly found in ***intriginous zones***. usually spares the neck and face. *intense pruritus with minimal skin findings **_increased intensity at night\*\*_***
36
How do you diagnose scabies?
1. often a clinical diagnosis 2. _skin scraping of the burrows with mineral oil_ to identify mites or eggs under microscopy
37
Management of Scabies
* **Permethrin topical** (Elimite, Nix) is the drug of choice\*\*. Applied topically from the neck to the soles of the feet for 8 - 14 hours before showering. Repeat application after 1 week is recommended. * **Lindane** is cheaper but **DO NOT use after showering** (**causes seizures\*** due to increased absorption through open pores) _CI: teratogenic--not used in breastfeeding women, children \< 2 yo​_ * 6 - 10% sulfur in petroleum jelly for pregnant women/infants. *Oral ivermectin if extensive* * *All clothing, bedding, etc. should be placed in plastic bag for at least 72 hours then washed and dried using heat*
38
What is androgenetic alopecia?
progressive loss of the terminal hairs on the scalp in a characteristic distribution
39
What is the key androgen leading to androgenetic alopecia?
DHT (dihydrotestosterone)
40
Management of Androgenetic Alopecia
**Minoxidil:** best used if recent onset alopecia involving a smaller area **Oral Finasteride:** 5 alhpa reductase inhibitor -- androgen inhibitor (inhibits the conversion of testosterone to dihydrotestosterone) SE: decreased libido or ejaculatory dysfunction
41
What is another name for Roseola Infantum?
Sixth's Disease (Human Herpes Virus 6 or 7)
42
Clinical Manifestations of Roseola
***Prodrome of HIGH FEVER\* 3 - 5 days*** ⇒ fever resolves before the onset of a _rose, pink_ maculopapular, blanchable rash on the **trunk/back** and spreads to the face (***only childhood viral exanthem that starts on the trunk\*\* and spreads to the face)*** *_Child appears well and alert during febrile phase\*._ may be a little fussy*
43
Management of Roseola
supportive, anti-inflammatories, antipyretics (to prevent febrile seizures)
44
What is the coxsackie virus?
virus part of the enterovirus family **MC in children \< 5 yo** spread feco-oral and oral-orally **MC in late summer/early fall** two types -- Coxsackie A & B
45
What can the coxsackie virus cause?
_BOTH A and B_ **aseptic meningitis,** rashes, common cold symptoms or no symptoms _Primarily Coxsackie A_ **Hand Foot and Mouth Disease** **Herpangina** _Primarily Coxsackie B_ **Pericarditis and Myocarditis** *(Coxsackie is the MC viral cause of pericarditis and myocarditis)* **pleurodynia**
46
Clinical Manifestations of Hand Foot and Mouth Disease
mild fever, URI Sx, decreased appetite starting 3 - 5 days after exposure ⇒ _*oral enanthem*:_ **vesicular lesions with erythematous halos** in the oral cavity (especially buccal mucosa & tongue) ⇒ *_exanthem_* 1 - 2 days afterwards -- vesicular, macular or maculopapular lesions on the distal extremities (**often includes the palms & soles**)
47
Clinical manifestations of herpangina
sudden onset of high fevers **_stomatitis_**: small vesicles on the soft palate, uvula & tonsillar pillars that ulcerate before healing, sore throat 3 - 5 days MC in children 3 - 10 yo
48
Management of Coxsackie A Virus (Hand Foot and Mouth Disease, Herpangina)
**_Supportive:_** antipyretics, topical lidocaine
49
What virus causes Mumps?
**paramyxovirus**
50
When is there an increased incidence of Mumps?
in the spring
51
When is a patient with Mumps infectious?
48 hours prior and 9 days after the onset of parotid swelling
52
Clinical Manifestations of Mumps
low-grade fever, myalgia, HA ⇒ **_parotid gland pain & swelling_**
53
How do you diagnose Mumps?
often a clinical diagnosis serologies can show Î amylase
54
Management of Mumps
**_Supportive_** anti-inflammatories symptoms can last 7 - 10 days
55
What are some complications of Mumps?
*MC seen in older patients* **_Orchitis in males\*_** (usually unilateral) oophoritis, encephalitis, aseptic meningitis **_Mumps is the MC cause of acute pancreatitis in children._** Deafness, arthritis, infertility
56
Prevention of Mumps
**MMR vaccine:** given at 12 - 15 months with a second dose at age 4 - 6 years
57
What virus causes Rubeola (Measles)?
**paramyxovirus**
58
Clinical Manifestations of Rubeola (Measles)
**_URI prodrome:_ high fever** **_3 C's: cough, coryza, conjunctivitis_** **_Koplik Spots\*_** (small red spots in buccal mucosa with pale blue/white center) precedes rash by 24 - 48 hours ⇒ ***morbiliform (maculopapular) _brick-red\*_ rash on face beginning @ hairline ⇒*** *extremities (palms and soles involvement usually seen last if it occurs) that darkens and coalesces* **_Rash usually lasts 7 days_** fading from top to bottom. Often febrile along with rash
59
What virus causes Rubeola (measles)?
paramyxovirus (same as mumps)
60
Management of Rubeola (Measles)
**_Supportive_** anti-inflammatories, no specific treatment ***Vitamin A*** reduces mortality of children with measles
61
To which virus family does Rubella belong?
Togavirus
62
Rubella (German Measles) is known as the "\_\_\_\_ day rash" (Hint: it's a number)
"3 day rash"
63
Compare/Contrast Rubeola (measles), Rubella (German Measles) and Roseola (6th disease)
64
Clinical Manifestations of Rubella (German Measles)
1. _low-grade_ _fever_, cough, anorexia, **_lymphadenopathy (posterior, cervical, posterior auricular)_** **⇒** **_pink, light-red spotted maculopapular rash_** on face ⇒ extremities (lasts ***3 days***) Compared to Rubeola, rubella spreads more rapidly & does not darken or coalesce _Forchheimer spots:_ small red macules or petechiae on soft palate (also seen in Scarlet fever) **2. Transient photosensitivity and joint pains may been seen (especially in young women)\***
65
Diagnosis of Rubella (German measles)
Clinical Diagnosis Rubella-specific IgM antibody via enzyme immunoassay (MC used)
66
Management of Rubella (German Measles)
**_supportive_** anti-inflammatories
67
Possible Complications of Rubella
generally no complications in children with Rubella as compared to Rubeola **Teratogenic esp 1st trimester\*: congenital syndrome\* - sensorineural deafness, cataracts, TTP ("blueberry muffin rash), mental retardation,** heart defects (part of the TO**_R_**CH syndrome)
68
What virus causes Erythema Infectiosum (5th disease)?
_**Parvovirus B19\***_
69
What is another name for Erythema Infectiosum?
Fifth Disease
70
Clinical Manifestations of Erythema Infectiosum (Fifth Disease)
coryza, fever ⇒ **_"slapped cheek"\*_** rash on face with circumoral pallor 2 - 4 days ⇒ **_lacy reticular rash_** on extremities (especially upper). spares the palms and soles. resolves in 2 - 3 weeks **_arthropathy, arthralgias: older children & adults\*\*_**
71
What could happen if a woman were to contract an infection of Erythema Infectiosum during pregnancy?
associated with **î fetal loss in pregnancy** *(fetal hydrops, CHF, spontaneous abortion)*
72
Diagnosis of Erythema Infectiosum (Fifth Disease)
serologies
73
Management of Erythema Infectiosum
**_supportive_** anti-inflammatories
74
What can Erythema Infectiosum cause in sickle cell patients?
**_aplastic crisis_** or G6PD deficiency
75
What is Erythema Toxicum?
thought to be due to immune system activation. seen in up to 70% of neonates
76
Clinical Manifestations of Erythema Toxicum
small, erythematous macules or papules ⇒ pustules on erythematous base 3 - 5 days after birth does not involve the palms or soles. individual lesions may spontaneously disappear
77
Management of Erythema Toxicum
self-limited usually resolves spontaneously in 1 - 2 weeks
78
What is Miliaria?
***Blockage of eccrine sweat glands*** (especially in hot and humid conditions) this leads to sweat seeping into the epidermis and dermis. increased counts of skin flora (S. epidermis, S. aureus)
79
There are different types of Miliaria (sweat rash). How does Miliaria crystallina manifest?
**1. _Miliaria crystallina:_** tiny, friable clear vesicles (due to sweat in the superficial stratum corneum) **MC in neonates** (especially in 1 week old neonates)
80
There are different types of Miliaria. How does **_Miliaria rubra_** manifest?
**_Miliaria rubra:_** severely pruritic papules (may develop pustules). Deeper in the epidermis
81
There are different types of Miliaria. How does **_Miliaria profunda_** manifest?
**_Miliaria profunda:_** flesh-colored papules (due to sweating in the papillary dermis)
82
What is Milia and how does in manifest?
keratin retention within the dermis of immature skin ***1 - 2 mm pearly _white-yellow papules_*** ***especially seen on the cheeks, forehead, chin and nose*** *Milia develop when tiny skin flakes become trapped in small pockets near the surface of the skin. Although milia can develop at any age, they're most common among newborns.*
83
Management of Milia
**none** usually disappears by the 1st month of life (may be seen up to 3 months)
84
What are café au lait macules?
uniformly hyperpigmented macules or patches with sharp demarcation. either present at birth (or developing early in childhood). varying colors from **light brown** to **chocolate brown** ## Footnote *due to increasde number of melanocytes & melanin in the epidermis*
85
***Children with \>= 6 Café Au Lait macules*** *(especially when accompanied with axillary or inguinal freckling) should be evaluated for...*
**Neurofibromatosis type I** nerve sheath tumors
86
What are **Port Wine Stains**? (aka **Nevus Flammeus**)
vascular malformations of the skin (due to dilated dermal capillaries)
87
Clinical Manifestations of **Port Wine Stains**
pink-red sharply demarcated, blanchable macules or papules in infancy **Over time, they grow & darken to a purple (port-wine) color and may develop a thickened surface** * They occur most commonly on the _head and neck_. Usually _unilateral_ or _segmental_.* * MC seen on the face but can occur anywhere (can be associated with other abnormalities such as glaucoma and spinal abnormalities)*
88
Management of **Port-Wine Stains**
**pulse dye laser treatment** (best if used in infancy)
89
What is **Sturge-Weber Syndrome?**
*congenital disorder associated with **classic triad:*** ***1. facial port wine stain** (especially along trigeminal distribution area & around eyelids)* ***2. leptomeningeal angiomatosis*** (typically benign growth consisting of small blood vessels) **3. ocular involvement** *(glaucoma)* *May develop hemiparesis contralateral to the facial lesion, seizures or intracranial calcification & learning disabilities*
90
What are **Mongolian Spots?**
congenital dermal melanocytosis due to mid-dermal melanocytes that fail to migrate to the epidermis from the neural crest may be seen in \> 80% of Asians and East Indian infants. increased in African Americans
91
Clinical Manifestations of Mongolian Spots
blue or slate gray pigmented lesions MC seen in presacral/sacral-gluteal area (may be seen on the shoulders, legs, back, and posterior thighs as well) with indefinite borders. May be solitary or multiple
92
Management of Mongolian Spots
spots usually fade over the first few years of life (before 10 years)
93
What is a **Nevus Simplex?** (aka **"stork bite"** or **"salmon patch"**)
Areas of surface capillary dilation. MC seen on the nape of the neck, eyelids & forehead.
94
Management of a **Nevus Simplex** (aka **"stork bite"** or **"salmon patch"**)
1. _observation:_ most will resolve spontaneously by age 2 & don't usually darken over time 2. _laser therapy:_ will reduce the appearance of lesions (those on eyelids and glabella usualely disappear by 2 - 3) (can deepen in color with vigorous activity or changes with ambient temperature)
95
Pathophysiology of **Staphylococcal Scalded Skin Syndrome (**aka **Ritter Disease)**
**MC seen in infants** or children \< 5 yo ***Disseminated exfoliated exotoxins produced by Staphylococcus aureus*** (esp strains 71 & 55) These toxins may cause proteolysis & destruction of the intraepidermal desmosomes of the skin
96
Clinical Manifestations of **Staphylococcal Scalded Skin Syndrome (SSSS** aka **Ritter Disease)**
1. Malaise, fever, irritability, extreme skin tenderness ⇒ ***cutaneous, blanching erythema*** *- bright skin erythema often starting centrally & _around the mouth_ before spreading diffusely. Erythema is worse in the flexor areas and around orifices - especially the mouth. After 1 - 2 days ⇒* * develop sterile, flaccid **blisters** esp in the areas of mechanical stress (hands, feet, flexural areas & buttocks) ⇒* * + **Nikolsky Sign\*\*** **separation of the dermis & rupture of the fragile blisters when gentle pressure is applied to the skin** ⇒* ***_Desquamative phase_** -- skin that easily ruptures, leaving moist, denuded skin before healing* *2. inflamed conjunctiva may be seen (may become purulent) but mucous membranes are NOT involved*
97
Diagnosis of **Staphylococcal Scalded Skin Syndrome** (**SSSS** aka **Ritter Disease)**
1. clinical diagnosis. intact bullae are sterile 2. cultures from urine, blood & nasopharynx. skin biopsy: lower stratum granulosum layer splitting.
98
Complications of **Staphyloccal Scalded Skin Syndrome** (**SSSS** aka **Ritter Disease**)
secondary infection: sepsis, pneumonia, cellulitis excessive fluid loss; electrolyte imbalances
99
Management of **Staphylococcal Scalded Skin Syndrome** (**SSSS** aka **Ritter Disease**)
1. Abx: **_Penicillinase-resistant penicillin 1st line\*\*:_ Nafcillin or Oxacillin** _+_ Clindamycin Vancomycin if MRSA is suspected or if failed penicillin treatment 2. Supportive skin care: maintain clean & moist skin, emollients to improve barrier function 3. *Fluid and Electrolyte Replacement*
100
What is **Scarlet Fever?** (**Scarlatina**)
diffuse skin eruption that occurs in the setting of **GABHS (Streptococcal pyogens) infection** Due to Type IV (delayed) hypersensitivity reaction to a pyrogenic (erythrogenic toxin A, B or C)
101
Clinical Manifestations of **Scarlet Fever**
1. Fever, chills, ***pharyngitis*** ("strep throat") 2. **_Rash:_** diffuse erythema that blanches with pressure plus many small (1 - 2 mm) papular elevations that feels like **"SANDPAPER"** when palpated **"sunburn with goosebumps"** MC starts in the groin & axillae then rapidly spreads to the trunk and then the extremities. The ***rash often desquamates*** over time (usually spares the palms & soles) -- often associated with a **flushed face with _CIRCUMORAL PALLOR & STRAWBERRY TONGUE_** -- **Pastia's Lines** = linear petechial lesions seen at pressure points, axillary, antecubital, abdominal or inguinal areas
102
Key Characteristics of **Scarlet Fever**
103
Management of **Scarlet Fever**
Same as strep pharyngitis. May return to school 24 hours after Abx initiation 1. ***Penicillin G or VK 1st line\*\****. Amoxicillin, Amoxicillin/clavulanic acid (Augmentin) 1. **Macrolides if PCN allergic**. other alternatives include Clindamycin, cephalosporins