Term
Inflammatory Papules Important Points:
Prominent ___
May see ___ secondary to scratching
Papules ___ in Lichen Planus and KP |
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Definition
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Term
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Definition
| itch mite Sarcoptes scabiei var. hominis |
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Term
| Scabies Papules result from ____ |
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Definition
hypersensitivity
"delayed from burrowing" |
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Term
Scabies Incidence
More common in (3) |
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Definition
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Term
Scabies History
Very ___
Incubation time ___ month
Get pet history with recurrent cases – canine scabies |
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Definition
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Term
| Scabies Physical Examination... |
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Definition
Finger webs, wrists, elbows, axillae, girdle area, feet, and male genitalia
Palmoplantar vesicles in infants
2-5 mm burrow
Delicate, white, serpiginous, superficial thread-like line
Tiny black speck representing adult mite
Nodular form in long standing disease
Burrow located in superficial epidermis |
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Term
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Definition
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Term
Scabies DOC?
Other Treatments: |
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Definition
Elimite
Lindane – risk of neurotoxicity
Systemic ivermectin 0.1-0.2mg/kg as single dose
Wash clothes and linens in hot water
Itching may occur up to 1 month after treatment |
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Term
Scabies Course and complications: |
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Definition
Secondary bacterial infection
Norwegian scabies
- Widespread crusted version that may not itch
- Seen in immunocompromised patients |
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Term
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Definition
Female burrows under skin Lays 2-3 eggs daily for 30 days
Human – human transmission most common
Inoculation to itching -> 1 month |
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Term
_______ Definition
Sting – bees, wasps, fire ants
Bite – mosquitoes, fleas, flies, bedbugs, lice |
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Definition
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Term
Insect Bite Reactions Incidence
Anaphylaxis in 0.5-1.5% of stings
____ are leading cause of allergy in the US
____ leading cause in the south |
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Definition
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Term
| Insect Bite Reaction History |
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Definition
| Other household member may or may not be affected |
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Term
Insect Bite Reactions Physical Examination
___ – immediate hive with central punctum
___ will leave behind a stinger
____ – necrosis
____– favor the legs
____ – breakfast lunch and dinner pattern |
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Definition
Sting
Honeybee
Brown recluse
Chiggers
Flea bites |
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Term
| Insect Bite Differential diagnosis (2) |
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Definition
Fiberglass
Mucha-Habermann disease
-> Necrotic papules and vesicles
-> More generalized and symmetric |
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Term
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Definition
| wedge-shaped superficial and deep eosinophilic infiltrate |
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Term
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Definition
Prevention – DEET
Topical steroids |
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Term
| Insect Bite Course and complications |
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Definition
Anaphylaxis
Desensitization therapy
Injectible epinephrine (Ana-Kit or EpiPen)
Persistent reaction – erythema migrans of Lyme disease |
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Term
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Definition
| Histamine, acetylcholine, and other vasoactive chemicals |
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Term
| Lichen Planus Definition – _____ |
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Definition
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Term
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Definition
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Term
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Definition
Itching
Pain on mucosal surfaces |
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Term
| Lichen Planus Physical Examination |
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Definition
| Purple, polygonal, flat-topped papule Wickham’s striae – fine reticulated pattern of white dots and lines Wrists, ankles, palms, soles, genitalia, mucosal surfaces |
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Term
| Lichen Planus Differential diagnosis (lots) |
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Definition
PV, PR, DLE, secondary syphilis
Lichenoid Drug eruption – thiazides, phenothiazines, gold, quinidine, quinicrine, and chloriquine |
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Term
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Definition
Saw-toothed of rete
Band like infiltrate of lymphocytes in superficial dermis |
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Term
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Definition
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Term
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Definition
Topical steroids
Acitretin for oral or severe cases |
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Term
| Lichen Planus Course and complications |
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Definition
Self-limiting
2/3 of patients have resolution within 1 year
Mucous membranes portends worse prognosis
Usually a 7 year disease.
Hard to treat on genitals.
Mucus membranes hard to treat. |
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Term
| Lichen Planus Pathogenesis |
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Definition
Cause unknown
Immune factors play a role
Immunoglogulins at DE junction
LP like eruptions in bone marrow transplant patients |
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Term
| Definition: Occlusion of the sweat duct with extravasation of its contents in surrounding tissue |
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Definition
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Term
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Definition
| More common in warm humid environments |
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Term
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Definition
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Term
Miliaria Physical examination
¡Miliaria ____
úMost common form of miliaria
úMultiple, discrete, red papules
úTrunk
úNot associated with hair follicles
¡Miliaria ______
úSuperficial, non-inflamed vesicles
more common in babies
¡Miliaria ____
úErythematous pustules
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Definition
rubra
crystillina
pustulosa |
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Term
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Definition
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Term
| Miliaria Differential diagnosis (3) |
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Definition
Contact dermatitis – more pruritic and confluent
Folliculitis
Candidiasis – more beefy red with satellite pustules and papules |
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Term
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Definition
Cooling measures and air exposure
Topical steroids for itching |
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Term
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Definition
| Miliaria crystallina – obstruction occurs in stratum corneum |
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Term
| Keratosis Pilaris Definition – ... |
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Definition
| keratinized hair follicles |
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Term
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Definition
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Term
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Definition
Not pruritic or painful
Worse in winter and improve with age |
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Term
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Definition
Folliclular papules with central horny plug
Bilateral upper arms (most common location), thighs |
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Term
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Definition
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Term
¨KP Differential diagnosis (2) |
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Definition
¡Lichen spinulosis
úAppear suddenly
úAbdomen, extensor surfaces
úRemit after 1-2 years
¡Lichen nitidus
úFlat topped and smoother |
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Term
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Definition
¡20% urea
¡6% salicylic acid
¡12% ammonium lactate
¡Tretinoin or tazarotene cream |
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Term
| Keratosis pilaris is a Very common Autosomal ____ condition |
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Definition
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Term
Lichen Spinulosis:
___ onset
Happens in ____ and _____ ______
Abdomen, extensor arms, knees, and neck
Remits after 1-2 year |
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Definition
Sudden
Children and young adults |
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Term
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Definition
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Term
| _______ AKA Transient Acantholytic Dermatosis |
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Definition
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Term
| Pruritic eruption of truncal, reddish brown, keratotic papules |
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Definition
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Term
| Grover's Disease Incidence: |
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Definition
| Middle-aged to elderly Caucasian males |
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Term
Grover's Disease:
Pruritic
Treat with potent topical ___
Disease is NOT ____
Almost always on ___ & ___ |
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Definition
steroids
transient
chest and back |
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Term
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Definition
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Term
| Minute, flat-topped papules with a shiny appearance |
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Definition
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Term
| Lichen Nitidus affect what parts of body: |
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Definition
| Upper extremities, dorsal hands, genitalia, and trunk |
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Term
Lichen Nitidus: Biopsy shows a “______” formation of lymphocytic infiltrate surrounded by elongated rete ridges
Resolution within several years |
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Definition
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Term
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Definition
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Term
Pityriasis lichenoides et varioliformis acuta (PLEVA)
____-____ disease
Recurrent crops of crusted, reddish papules that regress within weeks
Most common in ____
If persistent, condition is known as .....
Rare cases becoming ____
Treatment with topical ____ and oral ___ |
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Definition
Mucha-Haberman
children
pitryiasis lichenoides chronica
CTCL (t cell lymphoma)
steroids
antibiotics (erythromycin) |
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Term
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Definition
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