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