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Clin Med 206: Derm
Question | Answer |
---|---|
Largest organ of the body | Skin (16% body weight) |
Major organ that controls homeostasis and modulates body temperature/synthesizes vitamin D | Skin |
3 layers of skin | Epidermis, Dermis, Subcutis |
Most superficial layer of skin, no blood vessels, forms melanin and keratin | Epidermis |
Layer of skin that supplies epidermis with nutrients, lots of blood, connective tissue, sweat glands and hair follicles | Dermis |
Layer of skin that contains adipose tissue/vessels/nerves | Subcutis |
Change in color of the skin. Flat lesion, <1cm | Macule |
Macule that is larger than 1 cm referred to as a _______ | Plaque |
A small <1cm raised lesion with distinct borders. Can be domed, flat-topped or umbilicated. | Papule |
Large papule | Nodule |
A raised fluid filled lesion smaller than 1cm | Vesicle |
A fluid filled lesion greater than 1cm | Bullae |
An elevated lesion that contains pus (usually infected but can be sterile) | Pustule |
When in doubt about treatment of skin disease --> | under-treat |
Best drying agent for weepy skin | Water |
Ointments are _____ potent than creams | MORE (greasier = longer lasting) |
Don't treat pregnant women with ________ | Retin-A (teratogenic) |
#1 dermatologic cause of death | Malignant melanoma |
Flat brown spots that appear in young children | Freckles |
Flat brown spots that appear in sun-exposed areas with age | Lentigines |
Beige/brown/black pigmented lesions that look "stuck on" older patients | Seborrheic keratoses |
Risk factors for malignant melanoma | family hx, fair complexion, sun exposure |
4 Types of Malignant Melanoma | Nodular, Acral-lentiginous, superficial spreading, lentigo maligna |
Very common scaly lesion. Silvery scales on bright red, well-demarcated plaques. | Psoriasis |
Nail pitting can be seen with _______ | Psoriasis |
Treatment for generalized psoriasis (>30%) | UVB light 3/week, PUVA therapy, Acitretin, Cyclosporine |
Pruritic erythema and scaling, excoriation, lichenification (common in kids) | Atotpic Dermatitis (Eczema) |
Which scaly lesion is much worse in HIV pts? | Seborrheic Dermatitis |
Fungal infection on trunk, upper arms, neck, face and groin | Tinea Versicolor |
Malassezia furfur is associated with _______ | Tinea Versicolor |
Pale patches of skin that are treated with anti-fungal creams | Tinea Versicolor |
Pre-malignant plaques that can be acquired at tanning salons. | Actinic Keratoses |
Actinic Keratoses can progress to ________ | Squamous cancer (1:1000) |
Dermatitis that is usually seen on the faces of children. Treated with antibiotics. | Impetigo |
Common in puberty. Avoid oily applications. Inflammatory lesions and comedones "black heads" | Acne Vulgaris |
Flushing, "cauliflower nose", papules over forehead, cheeks and skin. Middle-aged pts. | Acne Rosacea |
Bacterial. Pustules in hair follicles. May become absess | Folliculitis |
Superficial fungal infection. Any part of mucous membrane. Whitish curd like substance | Candidiasis |
Erythematous subcutaneous swelling/papules with red/white halo. Allergic reaction. | Urticaria (Hives) |
"target lesions" are hallmark of this condition | Erythema Multiforme |
If mucous membrane is involved in erythema multiforme it can develop into _______. | Stevens-Johnson Syndrome |
Widespread erythema multiforme, very dangerous, can lead to toxic epidermal necrolysis | Stevens-Johnson Syndrome |
Pathognomonic of Lyme disease | Erythmea Migrans |
Infection of cutaneous layer of epidermis | Erysipelas |
Bullous drug eruptions can be caused by ____ and ____-_ | Bactrim and Dilantin/Phenytoin |
Warts, corn, seborrheic dermatoses are examples of ________ | hyperkeratoses |
Commonly in AIDS. Associated with HSV8. | Kaposi's Sarcoma |
Immunologic inflammation of subcutaneous fat | Erythema Nodosum |
Erythema Nodosum is most commonly seen with _________ | Systemic Lupus |