Derm Flashcards
“Stuck-on” waxy appearance
Seborrheic keratosis
Red plaques with silvery-white scales and sharp margins
Psoriasis
What is the most common type of skin cancer?
BCC
What lesion is a pearly-coloured papule with a translucent surface and telangiectasias?
BCC
Honey-crusted lesions
Impetigo
A febrile patient with a history of diabetes presents with a red, swollen, painful lower extremity
Cellulitis
+ Nikolsky sign
dislodgement of intact superficial epidermis by a shearing force, indicating a plane of cleavage in the skin
Pemphigus vulgaris
- Nikosky 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
What rash presents in a dermatomal distribution?
Varicella zoster
Flat-topped papules
Lichen planus
Irislike target lesions
Erythema multiforme
A lesion occurring in a geometric pattern in areas where skin comes into contact with clothing or jewelry
Contact dermatitis
What rash presents with one large patch and many smaller ones in a treelike distribution?
Pityriasis rosea
What rash presents with a flat, often hypo pigmented lesion on the chest and back?
Tinea (pityriasis) versicolour
What rash has a “spaghetti-and-meatballs” appearance on KOH prep?
Tinea (pityriasis) versicolour
What are five characteristics of a nevus suggestive of melanoma?
1) Asymmetry
2) Border irregularity
3) Colour variation
4) Large diameter
5) Changing appearance
What is a premalignant lesion from sun exposure that can lead to SCC?
Actinic keratosis
What disease presents with crusting vesicles in all stages of evolution on entire body?
Lesions of primary varicella
What causes “cradle cap”?
Seborrheic dermatitis
How do you treat “cradle cap”?
Treat conservatively with bathing and moisturizing agents
What lesions are associated with propionibacterium acnes and changes in androgen levels?
Acne vulgaris
What is the last resort treatment for acne vulgaris?
Oral isotretinoin (requires monthly blood tests)
What is the diagnosis of a painful, recurrent vesicular eruption of mucocutaneous surfaces?
Herpes simplex
What causes inflammation and epithelial thinning of the anogenital area, predominantly in postmenopausal women?
Lichen sclerosus
What is the second most common type of skin cancer?
SCC
What lesion presents with exophytic nodules on the skin + scaling + ulceration
SCC
