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35 Cards in this Set

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Contact dermatitis

Irritant-skin injured by friction, environmental factors such as cold, over-exp to water, chem such as acids, alkalis, detergents and solvents


Allergic to plants, poison ivy, chemicals, topical meds


Pruritic erythematous rash, denies hx, good hx, skin rxn within 6-12 hours of exposure


Infam of epidermis and erythema, no hivesm roughened patches without thickening and discrete demaraction of psoriasis; weeping lesions with tiny vesicles, burning or stinging


Sx relief and underlying cause: avoid allergens, cool wet compresses, Trimacinolon BID x 10days, calamine/antihist, antibiotics, oral steroids-severe

Seborrheic Dermatitis

Autosomal dominant trait


Benign skin lesions with aging


Slightly raised, skin colored, light brown-->thickened and take on rough, warty surface (darken and turn black)


Covered and uncovered


>65, cosmetic, irritation


Well defined, scaly, hyperpigmented and warty


Round to oval black in AA


Refer to Derm: cryosurgery, currettage, snip and shave

Atopic dermatitis

Chronic, relapsing, pruritic inflamm skin disease


more common in children


a/w increased serum IGE levels, asthma, allergic rhinitis, food allergies, chronic bronchitis


Pruritis, scratching worsens when itch appears


Eruthema, excoriated macules, papule inflamed lesions; crusting, symmetrical lesions, may weep


decreased itching, prevent secondary infection; ed patient, cetaphil, no bubble baths, burrow soaks and corticosteroids, Aquaphor

Acne


Y

Inflammatory disorder of the sebaceous gland and the accompanying hair follicle


Highest incidence in teens and younger adults, may appear in 20-40s


More common in females, more severe in males


Mild: non inflammatory comedones , topical OTC (Benzoyl, Retin-A, Differin, Tazorac)


Mod: non comedonal ((pustules, papules)-> inflammatory; oral tetracycline antibiotic in addition to topical (4-6 months: minocycline, doxy, erythromycin)


Severe: cystic (for females, hormone therapy; Accutane) -derm for aggressive therapy

Brown recluse spider

found in dry, dark spaces (violin shaped marking)


stinging sensation


mild inflammation, erythema, swelling at site of bite leading to tissue destruction; rarely systemic rxns and necrosis


Management: ice, clean and irrigate wound, elevate wound, tetanus, hospitaliation; doxy, cephalex, erythromycin x 10 days

Scabies

Mites


HIghly contagious, crowded areas


Papules: burrows, erythema, intense itching esp at night


Commonly located interdigital web spaces, wrists, anterior axillary folds, ankles and penis


Rx: Elimite-neck down coverage at HS repeat in 1 week


Household: treat everyone, wash clothes and linens, vacuum furniture and rugs


Bag things that cannot be washed x 1 week

Paronychia

Acute or chronic inflammation of tissue surround the nail


more common in women than men


localized to 1 finger, throbbing pain on nailfold, erythema, edema, foul purulent discharge (pain relief)


warm water soaks, topical antibiotic, oral if mrsa (bactrim, clinda, amoxicillin, cephalexin)

Basal cell carcinoma

Most common: face and nose, cheeks and ears, neck


Elevated papules that have pearly appearance with some crusting, blood vessels on border of lesion, central ulceration seen in late stages


slow growing, locally invasive, rarely metastasizes


Same as skin color, brown, blue, black

Clark's levels:

invading depth of lesion and metastatic potential:


Level I: in situ, confined to epidermis


Level II: extends through basement membrane and into upper dermis


Level III: extends into lower dermis


Level IV: extends into reticular dermis


Level V: invades SC tissue

Cellulitis presentation

Dermis to SC tissue: if untx--> infection


Tender, warm and erythematous area of skin


May report insect bite/small cut that got infected


Lesion getting large over several days


May have tender and enlarged lymph nodes near affected area


Could have c/o fever, chills in more severe cases

Breslow's method

Tumor thickness


Stage 1: <0.75mm dermis


Stage 2: 0.76-1.5mm


Stage 3: 1.51-2.25mm


Stage 4: 2.26-3.0mm spread to muscle, bones, cartilage, lymph nodes


Stage V: >3.0

Skin cancer prevention

Stay in shade, do not burn, avoid tanning and UV tanning booths, cover up with clothing, use broad spectrum UVA/UVB sunscreen


Apply 1oz of sunscreen to entire body 30 minutes before going outside; every 2 hours or immediately after swimming or excessive sweating

Brown recluse spider

found in dry, dark spaces (violin shaped marking)


stinging sensation


mild inflammation, erythema, swelling at site of bite leading to tissue destruction; rarely systemic rxns and necrosis


Management: ice, clean and irrigate wound, elevate wound, tetanus, hospitaliation; doxy, cephalex, erythromycin x 10 days

Hyperhidrosis

Sweaty feet, sweaty palms, axilla, offensive body order


overactivity of thoracic sympathetic ganglion


Med hx: oral hypoglycemics, SSRIs, ETOH; hx of DM, ovarian function, menopause, thyroid, malignancy, damage to ANS


Dryol or keralyt, Xerac, liposuction of axillary glands; rx not effective

Tinea capitus

Ringworm of the scalp


Most contagious; causes epidemics in schools, work, home etc


More common in toddlers and children


painless bald spot, no pain, fever or malaise


black dot, painless patchy, gray patch, kerion (bright red, boggy large lump)


Topical: 1st line


miconazole, lamisil, clotrimazole, ciclopirox, continue for 1 week until lesions have cleared; Burrow's solution; if on systemic antifuncals: LFT, CBC baseline and 4 weeks; baseline pregnancy

Tinea pedis

athlete's foot/ages 20-50 but elderly more susceptible to outbreaks


strong foot odor, soft, macerated white tissue between toes; starts in 3rd to 4th digit and spreads to toe webs and soles; macerated white skin between toes; if infected-itching with painful fissure; look for signs of cellulitis

Tinea cruris

Jock itch; rare in children, more common in adult men


obese male with c/o rash on groin, spreading to medial inner aspect of thigh; may have pruritis


Round to have circle; lesions to inner medial upper thigh; not on scrotum; color can be bright red to dull discoloration; with scratching can get secondary bacterial of c. albicans

Urticaria (hives, wheals)

sudden generalized eruption of pale, evanescent wheals or papules a/w severe itching


Angioedema-urticaria: edema of dermis and SC tissues-may be part of IgE mediated response -can be life threatening


Intense itching, hives, wheals that resolve within a few hours and reappear later; enlarge and form round irregular shapes; most cases of acute urticaria spontaneously resolve in 1-2 weeks


Find cause and stop exposure, avoid NSAIDS, aspirin, ACE-I; avoid tight clothing hot showers and baths


H1 antihistamines, advise about sedation; refer if angioedema and if >6 weeks

Tinea unguium

Onchomycosis (nails)


poor circulation, PVD


Fungal culture (KOH exam-spaghetti and meatballs)


Topical: up to 18 months: Penlac Naftin


Systemic: Itraconazole 200mg x 12 weeks; Terbinafine 12 weeks; Grispeg 6 months (teratogenic to sperm)

Scabies

Mites


HIghly contagious, crowded areas


Papules: burrows, erythema, intense itching esp at night


Commonly located interdigital web spaces, wrists, anterior axillary folds, ankles and penis


Rx: Elimite-neck down coverage at HS repeat in 1 week


Household: treat everyone, wash clothes and linens, vacuum furniture and rugs


Bag things that cannot be washed x 1 week

Erysepalis

diffuse, superficial spreading infection of the skin


Confined to superficial dermis and lymph


erysipelas classically involves more superficial layers of the skin and cutaneous lymphatics, whereas cellulitis extends more deeply into subcutaneous tissues


features that favor diagnosis of erysipelas include


area of inflammation raised above surrounding skin


distinct demarcation between involved and normal skin


in cellulitis, no clear distinction between infected and uninfected skin is present


both erysipelas and cellulitis may present with signs of local inflammation (warmth, erythema, and pain) as well as lymphangitis and lymphadenitis


Herpes zoster

painful blistering rash caused by reactivation of varicella, chickenpox virus


more common in adults, elderly


infectious: virus leasions and nose and throat


First sign: abnormal skin sensation along dermatone, feel ill, no lesions; then blistering rash (does not cross midline)


Postherpetic neuralgia: persistence of pain: TCA, gabapentin, Lyrica, opioids, lidocaine patches


Antivirals within 72 hours of rash onset-Valtrex, Famvir, Zovirax


Tylenol, NSAIDS, Tylenol with Codeine, Tramadol


Mod-sev pain: opioids


Corticosteroid therapy

Herpes simplex virus patient presentation

clear vesicles, erythema, low grade fever, generalized malaise, flu-like symptoms, painful vesicles and ulcer on tongue, palate, gingiva, buccal mucosa, lips


Pain in legs, buttocks of genital area; genital burning, itching, vaginal discharge


Grouped lesions on an erythematous base in mouth, face or genitals


if on eyelid or cornea: ophthamologist referral


No cure, lip, acyclovir, valtrex, Genital: Valtrex, fambir, zirovax 7-10 days

Psoriasis presentation and treatment

chronic relapsing condition with remission and flares


itchy, well-circumscribed, raised, erythematous papules and plaques covered with silvery-white scales; worsen over time; nails with stippling or pitting and yellow-brown color


elbows, knees, scalp, flexural surfaces of body


CBC, chem, uric acid, ANA, rheumatoid factor, ESR


Topical <20% of body: OTC emollient creams or ointments, keratolytic agents, topical corticosteroids


Exacerbations: super potent corticosteroid: Diprolene, Psorcon, Temovate, Ultravate 2 weeks


Scal: Zetar, sebutone, Pentrax shampoo


methotrexate, photo therapy

Paronychia

Acute or chronic inflammation of tissue surround the nail


more common in women than men


localized to 1 finger, throbbing pain on nailfold, erythema, edema, foul purulent discharge (pain relief)


warm water soaks, topical antibiotic, oral if mrsa (bactrim, clinda, amoxicillin, cephalexin)

Rosacea

Chronic and progressive skin disorder that resembles acne


fair skinned adults, no blackheads, whiteheads or nodules


perissten erythema followed by small clusters of blood vessels


recurrent acneiform erythematous papules or pustules around central face


persistent yellow papules around nose


NO known cure, ivermectin cream daily 8-10 weeks, metronidazole cream, clind or erythomycin if not effective; systemic therapy for flare ups: tetracycline, minocycline, doxycycline

MRSA tx

I& D with cultuyre


Bactrim


Doxyxline, minocycline

Folliculitis

inflamed hair follicles (filled with pus); superficial or deep anywhere there is hair


Cause: infection (s. Aureus), chemical irritants, mechanical irritation or injury


TxL mupirocin, altabax, clindamycin solution

Vesicles impetigo

Impetigo is a contagious skin infection that can occur at any age, but is most common in children aged 2-5 years and can present in either bullous or nonbullous forms.


distinction between impetigo and ecthyma, based on clinical presentation (often ulcers plus pain) is necessary to guide appropriate management3


confirmation of diagnosis not usually required, but may be done with Gram stain and bacterial culture: a positive culture does not differentiate between infection and colonization1


cultures of fluid, pus, erosions, or ulcers may inform treatment, particularly in recurrent or recalcitrant cases or outbreaks


causes of impetigo may be primary (direct bacterial infection of skin) or secondary to other dermatological conditions (chickenpox, atopic dermatitis, scabies) or skin trauma (cuts, abrasions, insect bites) (J Drugs Dermatol 2020 Mar 1;19(3):281)

Furuncles *boil

deep bacterial infection of hair follicle with abscess formation


-caused by gram-positive staph aureus; tender to touch, red in color; become fluctuant; drain and resolve spontaneously


Warm compresses promote spontaneous rupture and drainage


Topical abx: gram positive coverage: Bactroban, neosporin

Carbuncle

Large abscess made up of multiple furuncles


Large, painful red lumps with multiple openings, will drain puss


Must drain before healing spontaneously within 2 weeks, may need I& D

Basal cell carcinoma

Most common: face and nose, cheeks and ears, neck


Elevated papules that have pearly appearance with some crusting, blood vessels on border of lesion, central ulceration seen in late stages


slow growing, locally invasive, rarely metastasizes


Same as skin color, brown, blue, black

Squamous cell carcinoma

Face, lip, ears, upper cheeks, scal, dorsa of hands and forearms


Malignant non-melanoma skin cancer originating from keratinized epithelial cells: roughened area that does not heal and bleeds when scraped


Caused by actinic damage due to chronic sun exposure


More common in men and older individuals


firm papule with scaly, rough surface with irregular borders, may have horns and bleed easily

Malignant melanoma

Tumor of melanocytes, most commonly found in skin, intestine, brain, eye; very aggressive


Presence of large or multiple nevi


Concerns about changing mole, may be burning, itching, bleeding


Sites of sun exposure: asymmetric lesion with irregular border, notching >6mm, mixture of blue, red, tan, brown, black and white colors, typically flat

Clark's levels:

invading depth of lesion and metastatic potential:


Level I: in situ, confined to epidermis


Level II: extends through basement membrane and into upper dermis


Level III: extends into lower dermis


Level IV: extends into reticular dermis


Level V: invades SC tissue