Integumentary System (part 3)

what are the primary papulosquamous disorders

pityriasis rosea, lichen planus, seborrheic keratosis

what are the secondary papulosquamous disorders

seborrhea, psoriasis

wha do papulosquamous disorders consist of

papules or plaques with scales

what is the first sign of a pityriasis rosea rash

herald patch (usually on the trunk)

the distribution of pityriasis rosea follows what type of arrangement

christmas tree

what papulosquamous disorder is shown in this picture

Pityriasis rosea (herald patch)

this rash is periodic, lacy, with purple papules or plaques that is common during winter months. It occurs when the immune system attacks the cells of the skin

lichen planus

what rash is shown

lichen planus

what is seborrheic keratosis

an asymptomatic flat, light tan lesion that can become raised with increased pigment and karotic surface

describe psoriasis

plaques present in the epidermis, scales shed easily, common on the knees, elbows, and buttocks

what is seborrheic dematitis

Dry or oily scales common on the head. flakes easily

what is vitiligo

macular, flat. Progressive loss of pigmentation

what is tinea versicolor (pityriasis versicolor)

scaly patches of hyper or hypopigmented skin, accompanied by itching

what is xanthoma

flesh to yellow-colored asymptomatic plaques around eyes/eyelids or extensor surfaces of knees and elbows

xanthoma is indicative of abnormal ____ _____

lipid metabolism

what are café au lait spots

tan to brown asymptomatic macular lesions that vary in appearance and size from increased melanin

what is café au lait spots associated with

developmental and congenital conditions- neurofibromatosis

what is acanthosis nigricans

hyperpigmented area usually in the axillae, neck and groin areas. Macular lesions with velvety texture

what is acanthosis nigricans associated with

insulin resistance (evaluate for diabetes)

what is the most common symptom associated with dermatitis

pruritus

people with atopic dermatitis (eczema) have a hx of ____ or chronic ____

asthma/allergies

describe the presentation of atopic dermatitis

recurrent, itchy rash and erythematous scaly patches and flax

on flexor surfaces of extremities, neck, and face

what labs are elevated in pts with atopic dermatitis

eosinophil or serum IGE

varicose veins results in this

stasis dermatitis

this rash has a red base with satellite pastels when left in contact with feces or urine

diaper dermatitis

this is known as cradle cap

seborrheic dermatitis

list the physical exam findings of seborrheic dermatitis

greasy scales, macules, papules, and patches