name the 3 layers of the skin
Albinism
a genetic disorder that deprives skin, hair, and eyes of melanin
Precancerous nevi are moles and the most common benign skin tumors but where do they come from?
They develop from melanocytes during childhood (3-5yr)
which burn assessment is most accurate
Lund and browder
I accidentally spilled boiling vegetable oil all over my leg! The tissue is all burned (eschar). I am feeling a lot of pressure in that area and am worried the circulation of my leg is suppressed!
Compartment syndrome
______ is a flat area of pigmentation. Think freckle!
Macule
inflammatory disorder of the sebaceous glands. Inflammatory papules, pustules, nodules (12-25 year olds)
acne vulgaris
what is the deadliest form of skin cancer? why?
malignant melanoma are prone to metastasize
what layers of the skin are affected by a deep-partial burn?
epidermis, papillary dermis, and reticular dermis
i am an obese, pregnant 74 yr old woman with a history of blood clotting disorders. I have a loss of sensation in my legs, poor circulation, and I'm really itchy
Stasis ulcers
_______ is a raised, well-defined lesion less than 0.5 cm in diameter. Think bug bite or cystic acne
Papule
permanent blood vessel abnormalities, as the child ages the birthmark darkens and becomes larger
Port Wine Stain
what is the most common form of skin cancer? what are its characteristics?
basal cell carcinoma: begins as a small, dome-shaped bump, covered by small, superficial blood vessels called telangiectasis. The texture is shiny and translucent, “pearly”. Grow slowly and deeply
what layers of the skin are damaged in a superficial partial thickness burn?
epidermis and papillary dermal layer
I just ran a marathon and i am a sweaty girl! My skin is feeling greasy, inflamed, and itchy. What's wrong?
Seborrheic dermatitis
_______ are transient, pale elevated papules with pink margins. These are itchy. Usually get these with an allergic reaction.
wheals/urticaria
delayed hypersensitivity to materials. Allergic skin reactions occur days after allergen exposure
contact dermatitis
Characteristics and cause of squamous cell carcinoma
Appears as a red, crusted, scaly patch on the skin; a nonhealing ulcer; or a firm, red nodule. Risk increases with age and UV exposure
what are the 3 zones of injury in order (superficial -> deep)
zone of hyperemia
zone of stasis
zone of coagulation
could you look at this spot on my upper thigh? It's a squiggly circle shape, its pink and brown, 8cm, and looks different from last month!
malignant melanoma
_____ are fine, irregular red lines produced by dilation of capillaries. Think spider veins.
Telangiectasia
large pigmented spots (age spots), appear on fair, sun-damaged areas of the skin (usually hands, forearms, and face)
lentigos
What is the difference between actinic keratosis and Lentigos?
actinic keratosis: present as patches of rough, scaly, red plaques, defined border
lentigos: variable border, appear as brown spots in sun-exposed areas
explain how significant burns can lead to hyperkalemia and shock!
Cellular damage alters normal sodium and potassium ion flow, and the large release of potassium into the extracellular fluid increases the risk for hyperkalemia and cardiac arrhythmias.
could you look at this spot on my nose? It's a red, crusted, scaly patch, its kinda firm like a nodule!
squamous cell carcinoma