Dermatology_RR Flashcards
“Stuck-on” appearance
Seborrheic keratosis
Red plaques with silvery-white scales and sharp margins
Psoriasis
The most common type of skin cancer; the lesion is a pearly-colored papule with a translucent surface and telangiectasias
Basal cell carcinoma
Honey-crusted lesions
Impetigo
A febrile patient with a history of diabetes presents with a red, swollen painful lower extremity
Cellulitis
Positive Nikolsky’s sign
Pemphigus vulgaris
Negative Nikolsky’s sign
Bullous pemphigoid
A 55-year-old obese patient presents with dirty, velvety patches on the back of the neck.
Acanthosis nigricans. (Check fasting blood glucose to rule out diabetes.)
Dermatomal distribution
Varicella zoster
Flat-topped papules
Lichen planus
Iris-like target lesions
Erythema multiforme
A lesion characteristically occurring in a linear pattern in areas where skin comes into contact with clothing or jewelry
Contact dermatitis
Presents with a herald patch, Christmas-tree pattern
Pityriasis rosea
Pinkish, scaling, flat lesions on the chest and back; KOH prep has a “spaghetti-and-meatballs” appearance
Tinea (pityriasis) versicolor
Five characteristics of a nevus suggestive of melanoma
Asymmetry Border irregularity Color variation Diameter / Depth Evolving
A premalignant lesion from sun exposure that can lead to squamous cell carcinoma
Actinic keratosis
“Dewdrops on a rose petal”
Lesions of primary varicella
“Cradle cap”
Seborrheic dermatitis (Treat conservatively with bathing and moisturizing agents.)
Associated with Propionibacterium acnes and changes in androgen levels
Acne vulgaris
A painful, recurrent vesicular eruption of mucocutaneous surfaces
Herpes simplex
Inflammation and epithelial thinning of the anogenital area, predominantly in post-menopausal women
Lichen sclerosus
Exophytic nodules on the skin with varying degrees of scaling or ulceration; the second most common type of skin cancer
Squamous cell carcinoma
