Dermatology Flashcards
Atopic Dermatitis (Eczema) is associated w/ atopic triad (eczema, allergic rhinitis, and asthma). Pruritus is HALLMARK. MC found in _____ (part of body).
Flexor creases
Treatment for eczema involves:
Topical corticosteroids and antihistamines (benadryl, hydroxyzine)
____ occurs in areas of high sebaceous gland over secretion (scalp, face, brows, body folds). Called “cradle cap” in infants.
Sebhorrheic Dermatitis
*Tx- Selenium sulfide, ketoconazole shampoo/cream, Systemic antifungals- ‘azoles’
____ is used to treat perioral dermatitis.
Topical Flagyl
Want to AVOID _____ when treating perioral dermatitis.
Topical steroids
Dyshidrosis (Dyshidrotic Eczema) is triggered by sweating and emotional stress. S/s include: pruritic “tapioca-like” tense vesicles on the soles, palms, and fingers.
Treatment= Topical steroids
Common drugs that cause Erythema Multiforme are:
Sulfas, PCNS, phenobarb, dilantin
Meds for specific rashes…
- Exanthematous/Morbilliform= oral antihistamine
- Drug induced urticaria/angioedema= systemic corticosteroids, antihistamines
- Anaphylaxis= IM Epi
- Erythema Minor= symptomatic therapy
Erythema Multiforme is associated with ___ (specific infectious cause).
HSV
*Also- Mycoplasma in kids and certain meds (sulfas, PCNs, etc)
S&S of erythema multiforme are:
TARGET lesions. Purpuric macules/vesicles or bullae in the center surrounded by pale rim & a peripheral red halo
- Often febrile
- <10% of BSA, NO EPIDERMAL DETACHMENT
What meds are MC related to SJS and TEN?
Sulfas, anticonvulsants, NSAIDs, Allopurinol, ABX
To be classified as TEN > ___% of BSA must be sloughing off.
> 30%- May develop skin necrosis
How are SJS and TEN treated?
Treated like burns–> burn unit admission, fluids and electrolytes!, wound care
_____ is associated with 5 P’s. Purple, Polygonal, Planar, and Pruritic Papules. There is an increased incidence with Hep C.
Lichen Planus
- WICKHAM STRIAE
- Tx: Topical corticosteroid AND symptomatic tx
_____ can mimic syphilis. It is associated with a HERALD PATCH on the trunk w/ general exanthem 1-2 weeks later that appear in a CHRISTMAS TREE PATTERN.
Pityriasis Rosea
*Tx: None need, usually resolves in 6-12 weeks
Keratin hyperplasia leading to PLAQUE that is MC seen on extensor surfaces of elbows/knees, scalp, and nape of neck is known as _____.
Psoriasis
*Also nail pitting w/ yellow-brown discoloration under the nail (oil spot)
“Pencil in cup” deformity is associated with what condition?
Psoriatic arthritis
-Sausage digits!
Treatment of Psoriasis involves:
Mild-Moderate: topical steroids
Moderate-Severe: Phototherapy
-Systemic treatment- methotrexate, cyclosporine, retinoids, etc.
_____ is an autoimmune blistering skin disease.
Bullous Pemphigoid
*Esp in groin, axilla, abdomen, and flexural areas
**Treatment= topical corticosteroids if mild, applied to early lesions to prevent blisters
_____ is an autoimmune d/o that affects young patients (30s-40s) and involves oral mucosa/membrane erosions and ulcerations that bleed easily.
Pemphigous Vulgaris
- Dx- skin biopsy
- Treatment- high-dose corticosteroids, MTX
_____ is a result of increased sebum production.
Acne vulgaris
Treatment of acne at different levels of severity…
- Mild: topical retinoids, benzoyl peroxide, topical ABX (clinda), OCPs
- Moderate: See above + oral ABX +/- anti-androgen agents (Spironolactone)
- Severe (nodular or cystic): Isotretinoin (Accutane)
* Be sure to monitor psych, LFTs, TG, lipids, etc
* *Highly TERATOGENIC!!
Vasomotor instability that is MC in males >30y and triggered by ETOH and hot foods/weather/baths is known as _____.
Rosacea
*NO comedones- distinguished it from acne
_____ is 1st line treatment for Rosacea.
Flagyl (Metronidazole- think you get “flushed” when you’re on the hot Metro).
