eczematous eruptions Flashcards

Question

**Atopic Dermatitis Presentation

Answer 1

Acute - erythematous papules, excoriation, pruritic Subacute - excoriated, scaling papules Chronic - thickened, lichenification, hyper-/hypopigementation Babies-extensor, adults-flex folds

Answer 2

First degree relative has condition Microbes (S aureus, Candida, Trichophyton dermatophytes Stress Food allergy Allergens Irritant contact Term IDMs (not preterm IDMs) Obesity

Answer 3

Neg skin test to r/o (pos skin test don't tell much) RAST (radioallergosorbent test) - good predictor S aureus cultured from skin

Answer 4

``` Stress reduction Lower temp and raise humidity Moisturize: **OINTMENT>cream>lotion>solution Corticosteroid (least potent effective) Antibiotics when infected ```

Answer 5

``` Oily flaky skin over erythematic patches Dandruff Varied pruritis < 6month old, after puberty Generally no underlying disorder ```

Answer 6

Low potency glucocorticoid Plus anti fungal (for inflammation) Anti dandruff shampoo -- leave in for 3-5 min

Answer 7

Circumscribed lichenified plaque From chronic scratch Treatment: break cycle of itching High potency topical glucocorticoids; occlusion

Answer 8

Coin like legions Crusted and scaly (begin as edematous papules) Mainly men Treatment same as atopic dermatitis

Answer 9

Winter itch Caused by dry air, often from use of HV/AC Treatment- topical moisturizers Made worse by overbathing and harsh soaps Dry skin, fine cracks and scales

Answer 10

Thin skin areas or where irritant touches skin Most common from chronic hand washing (chronic low grade dermatitis) Varies from erythema to edema vesicles and ulcers Eg Hunan hand syndrome (chili burns) Treatment- avoid irritant

Answer 11

IgE Mediated | release antihistamines : angioedema, urticaria, bronchospasm, analphylaxis

Answer 12

Cytotoxic IgM and IgG recognize drug bound to cell and cell is destroyed hemolytic anemia and thrombocytopenia

Answer 13

Immune Complex soluble IgG or IgM complexes Complexes deposit in BV walls -> complement cascade -> serum sickness

Answer 14

T-cell mediated/delayed hypersensitivity | topical admin activates T-cells -> contact dermatitis

Answer 15

Erythema Vesiculation Server Pruritus

Answer 16

Plants (poison ivy) - urushiol adheres to skin, linear eruption pattern because where touches skin Nickel - sites of direct contact Latex [gloves] - many possible allergens esp proteins in latex; common in spina bifida, shunts, kids with atopy; 24-48 hrs after exposure; patch tests Hair dye and Henna - p-Phenylenediamine (PPD) Textiles - wash and wear chemicals Preservatives - cosmetics and topical meds Fragrances Drugs - corticosteroids, neomycin, benzocaine Photoallergy - UV light

Answer 17

pruritic vesicular eruption ("pompholyx") on thick skin areas burning pain or itchiness before it occurs pruritis of hands/feet with sudden onset of vesicles (may be in waves)

Answer 18

``` hyperhidrosis atopic dermatitis contact dermatitis stress distnat fungal infection ``` genetics UV A light

Answer 19

conld compress high dose topical corticosteroid botulism toxin A immunosuppressants low Ni or Co diets

Answer 20

lower extremities secondary to venous incompetence and chrona edema Early: mild erythema (scaling & pruritus) on medial aspect of ankle Chronic: brawny edema, eventually develops ulcer assoc. with DVT, vein removal, varicose veins

Answer 21

leg elevation compression stockings emollients/mid potency topical glucocorticoids control the edema (like with diuretics)

Answer 22

caused by wetness, friction, and presence of urine, feces, and microoriganisms esp fecal proteases and lipases pH elevated - increase activity of ^ and upset normal microbiota Kawasaki's = rare form

Answer 23

obstruction of eccrine sweat glands | erythema and vesicles; can develop into pustules

Answer 24

meceration and chafing of skin b/c wet skin has higher coef of friction and is more fragile

Answer 25

urine + feces + higher pH = activated fecal lipases, ureases, & proteases that irritate skin and make more permeable to other irritants

Answer 26

Candida albicans infects compromised skin often associated with thrush worsened by antibiotics, esp amoxicillin

Answer 27

Bullous impetigo or folliculitis most often staphylococcus or streptococcus skin compromised by higher pH, secondary infection by fecal microorganisms

Answer 28

associated with other signs of seborrhea (cradle cap/dandruff)

Answer 29

spares diaper area - hydration/occlusion

Answer 30

rare | inflamm. response to irritation, candidiasis, or fluorinated corticosteroids

Answer 31

airing diaper area changing diaper type (cloth or super absorbent gels) barrier ointments antibacterials if infected *look out for abuse (dunking baby bum in hot tub)

eczematous eruptions Flashcards

(55 cards)