Dermatitis

Question 1

Eczema Contrast to Papulosquamous

Answer 1

• Dermatitis is ill defined boreders with epidermal disrutopion and prominent itch. There is spongiosis and intraepidermal vesication leading to crust. There is also scale and eventually lichenification
• Papulosquamous are well demarcated plauqes that can have scale and can have itch. There is no prsence of crust or evidence of epidermal disruption

Question 2

DDX

Answer 2

Psoriasis, Scabies, Lichen planus, fungus, erysepilas, pitaryasis rosea/rubra pilaris, drug eruption

Question 3

Types of dermatitis

Answer 3

• Nummular
• Seborheic
• Pomoholyx
• Asteatotic
• Gravitiational
• Diaper
• Juvenile plantar
• Atopic
• Irritant
• Lichen Simplex

Question 4

Nummular

Answer 4

Most common in mid age men, shows as eryhtematous plaues on the extremtities possibly related to bacterial interaction

Question 5

Seborrheic

Answer 5

-Located on the ears/face/scalp, chest, armpits. Oftenr elated to yeast, tx with ketocolanzaole cream

Question 6

Pompjolyx

Answer 6

-Vesiculbulous reaciton of finger often related to stress or sun exposure. Avoidance of triggers, emolients, and care are tx

Question 7

Asteatotic

Answer 7

Common in elederly indididuals shows mosaic of fissures

-Emoilients

Question 8

Gravitations

Answer 8

Secondayr to stasis although not always obvious, chronic patchy eczema with evidence of varicose veins etc. Avoid edema.

Question 9

Lichen Simplex

Answer 9

Repetative scratching adn rbbing leads to chronic itching and epidermal disruption, lichenification and fissures

Question 10

Juvenile Plantar Dermatosis

Answer 10

Impaired venitlation from socks and shoes leads to fissures and descquamatoin of the feet

Question 11

Diaper

Answer 11

-Urea breaking baceria lead to contact irritant dermatitis that may be a nidus for candidal infection

Question 12

Contact Dermatitis

Answer 12

• Must be present in the presence of an allergen
• Must improve with the removal of the allergen
• Asociated with classically involved areas such as the eyst, ear, hands, feet, anal, periulcer ares
• Has an assymetric pattern

Question 13

Dif Between allergic and irritant

Answer 13

-Alerigic have a reaction, irritant from repetative damage to epidermis

Question 14

Atopic Critersi

Answer 14

1. Chronically itchy skin for greter than 1 year
2.
-Onset less than 2
-Personal atopic history
-Itch in classic areas
-Eczema in classic areas
-Dry skin for greater than 1 year

Question 15

Education

Answer 15

• Avoidance and vigilant emolient use is best
• Topical steroids can be useed sparingly choosing the lowest potency and used as infrequently as possible
• Can use topical calineurin inhibitors
• Can use wet dressings and bleach baths
• Keep bacterial colonization to a minumum
• Can use cyclopsorin, AZT, MM if refractory

Question 16

Contact

Answer 16

Metals: Nickel, Chrome, Cobalt
Preservatives: Formaldehyde, Parabens
Rosins: Colophony
Cosmetics: PDP
Plants
Medications
Rubber (Thio) in vulcanization