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DU PA Intro to Derm
Duke PA Introduction to Dermatology
| Question | Answer |
|---|---|
| functions of the skin | protective, sensory, makes active V D, identiviation/social communiction |
| layers of the skin | epidermis, dermis, subcutaneous fat |
| layers of epidermis | stratum corneum, stratum granulosum, stratum spinosum, stratum basale |
| major cell population (80%), immune function | keratinocyte |
| derived from neural crest, same number in all races, also found in hair follicles, brain, and eyes | malanocytes |
| antigen presenting cell in the skin | langerhans cells |
| layers of dermis | papillary, reticular |
| most of the dermis is made up of the | reticular dermis |
| layer of the dermis that contains blood vessels, hair follicles, sebaceous glands, and muscles, sweat glands | reticular dermis |
| types of sweat glands | eccrine, apocrine |
| type of sweat gland involved in thermoregulation, found all over the whole body | eccrine |
| type of swear gland involved in scent, found in axilla, genitals, ears, eyelids, mammary | apocrine |
| cells of the dermis | fibroblasts, mast cells, macrophages |
| cell of the dermis that synthesizes collagen | fibroblasts |
| cell of the dermis that has many IgE receptors on their surface, cause hives | Mast cells |
| means net like | reticulated |
| lesion that looks like a coin | nummular |
| if a group of lesions has a dermatomal distribution what disease is it likely to be | herpes zoster (shingles) |
| flat (non-palpable), alteration in color, size is 1cm or less, | macule |
| a large macules (>1cm) | patch |
| raised (palpable), size is 1cm or less, color can vary, | papule |
| a pearly papule with telangiectasia is probably | basal cell carcinoma |
| is a large papule >1cm | plaque |
| dark brown, waxy papule | seborrheic keratosis |
| raised and filled with clear fluid, size is 1cm or less | vesicle |
| a large vesicle >1cm | bulla |
| dew drops on a rose petal | vesicles on an erythematous base (chicken pox) |
| raised (palpable), circumscribed collection of inflammatory cells and free fluid, variable in size | pustule |
| raised solid, often round, deeper than papule, size is 1cm or less | nodule |
| a large nodule >1cm | tumor |
| skin lesion formerly known as hive | wheal |
| firm, edematous papule or plaque, fluid filled but fluid is bound, flat-topped elevations, transient in nature, type I hypersensitivity reaction | wheal |
| secondary skin lesions | scale, crust, erosion, ulcer, fissure, atrophy |
| secondary skin lesion formerly known as scab | crust |
| collection of serum, blood, or pus | crust |
| focal loss of epidermis, heals without scarring | erosion |
| focal loss of epidermis and dermis, heals with scarring | ulcer |
| linear crack (occurs following lichenification) | fissure |
| erosions from scratching | excoriation |
| enhancing of lines already in the skin | lichenification |
| blackheads and whiteheads=acne | comedo |
| small, superficial keratin cyst | milia |
| dermal nodule, visible opening often seen, filled with cheesy nast-smelling stuff | cyst |
| narrow, elevated tunnel=parasite (scabies) | burrow |
| thickening of the skin | lichenification |
| dilated superficial vessels | telangectasia |
| nonblanchable blood deposit 1cm or less | petechiae |
| perechiae >1cm | purpura |
| KOH prep is used to help see what | fungus and yeast |
| what is diascopy used to see (putting pressure on a lesion to see if it blanches) | vascular lesions |
| what is a Tzanck Smear used to identify | virus |
| what is mineral oil prep used to identify | scabies |
| what is patch testing used for | when contact allergy is suspected |
| acetowhitening is | unreliable |
| when in doubt what do you do | biopsy |
| fancy name for blacklight | Wood's Light |
| a simple office procedure used to identify fungal organisms and yeast prior to initiating treatment | KOH prep |
| when doing a KOH prep always scrape the __ | border of the lesion |
| office procedure for suspected viral infection, scrapings must be obtained from the base of a freshly opened vesicle | Tzanck smear |
| what are you looking for under the microscope when doing a Tzanck smear | multinucleated giant cells |
| aka scabies prep | mineral oil prep |
| what is the special name for scabies poop | scybala |
| if your patient is itchy have __ in your differential | scabies |
| contact allergen of the year for two consecutive years | neosporin |
| fluoresces white with wood's lamp | vitiligo |
| fluoresces coral red with wood's lamp | erythasma |
| honey colored crust is pathognomonic for | impetigo |
| what causes hand foot and mouth disease | coxsackie virus |
Created by:
bwyche
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