Dermatology Flashcards
Why should actinic keratosis be treated?
It may progress to squamous cell carcinoma
What is the first line treatment for rosacea?
Metronidazole (tetracycline is a close second)
Where are 90% of basal cell lesions found on the body?
Head and neck
Purple, pruritic, polygonal papule on PE should make you think of what diagnosis?
Lichen planus (4 P’s!)
What are the ABC’s of melanoma?
Asymmetry, border, color, diameter/depth, evolving
A positive auspitz sign should make you think of what diagnosis?
Psoriasis
What is the key indicator for the prognosis of melanoma?
Thickness of the lesion
What is the treatment for melanoma?
Wide local excision
A waxy, stuck on appearance should make you think of what diagnosis?
Seborrheic keratosis
A 5 y.o. presents in January with a red itchy rash behind his knees and on the flexor surfaces of the elbow, what diagnosis should you be thinking of?
Atopic dermatitis
The term satellite lesion should make you think of what diagnosis?
Candida diaper rash
Coin shaped plaques should make you think of what diagnosis?
Nummular eczema
A patient presents with yellow, flaky skin in the nasolabial folds and in her heai (? typo?). What diagnosis should you be thinking of?
Seborrheic dermatitis
How do you treat stasis dermatitis?
Compression stockings
Tapioca blisters should make you think of what diagnosis?
Dishydrosis (usually on hands and feet)
How do you treat dishydrosis?
Topical steroids
Giant cells on a Tzanck smear should make you think of what diagnosis?
HSV
How do you treat lichen simplex chronicus
Stop itch scratch cycle
A herald patch should make you think of what diagnosis?
Pityriasis rosea
How do you treat pityriasis rosea?
Reassurance that it will clear up on its own
A patient with a history of herpes presents with a target lesion. What diagnosis should you be thinking of?
Erythema multiforme
Rhinophyma (prominent pores and a fibrous thickening of the nose) should make you think of what diagnosis?
Acne rosacea
Silvery scales should make you think of what diagnosis?
Psoriasis
Tear drop lesion after a course of strep throat should make you think of what diagnosis?
Guttate psoriasis
Are lesions from psoriasis typically found on flexor or extensor surfaces?
Extensor
What is the first line treatment for tinea corporis?
Topical azoles
What are the two most common organisms responsible for cellulitis?
Strep and staph
Pitting nails is associated with what dermatologic disorder?
Psoriasis
Nummular eczema is most like what other dermatological disorder?
Atopic dermatitis
Honey colored crusts should make you think of what diagnosis?
Impetigo
What two herpes viruses are most responsible for condyloma accuminata?
HSV 6 and 11
A double comedone is indicative of what diagnosis?
Hidradenitis suppurativa
What is the best treatment for molluscum contagiosum?
It is self limiting, but can be removed if patient really wants it
What is the treatment for seborrheic keratosis?
It is benign so there is no need to treat it, cryotherapy reserved for cosmetic purposes
Hyperpigmented velvety plaques should make you think of what diagnosis?
Acanthosis nigricans
Melasma is most often found in what patient population?
Women of child bearing age
Extremely pruritic lesions with burros in runs should make you think of what diagnosis?
Scabies
What is the first step in treating atopic dermatitis?
Behavioral modifications: Reduce bathing, use soap only on face and genitals, use natural breathable fabrics
What is the treatment for a bad brown recluse spider bide
Debridement, the venom causes tissue necrosis
Salmon colored scales should make you think of what diagnosis?
Psoriasis
Depigmented patches of skin should make you think of what diagnosis?
Vitiligo
Spaghetti and meatballs on KOH prep should make you think of what diagnosis?
Tinea versicolor
What dermatologic finding is associated with insulin sensitivity?
Acanthosis nigricans
A slowly growing nodule with a central depression and a pearly border should make you think of what diagnosis?
Basal cell carcinoma
What dermatologic finding is associated with asthma?
Atopic dermatitis
A christmas tree pattern should make you think of what diagnosis?
Pityriasis rosea
Oval patches of hair loss should make you think of what diagnosis?
Alopecia areata
What is the DOC for genital warts?
Imiquimod
Pearly dome shaped lesion with a central umbilication should make you think of what diagnosis?
Mulluscum contagiosum
What is the best lab test for scabies?
Microscopic examination under oil immersion
