Test 1 Flashcards
Acromegaly
pituitary gland disorder. inc cartilage growth. protrusion of jaw and enlargement of forehead. classical sign is bitemporal hemianopia
rickets
vitamin d deficiency. develop box like head
paget’s bone dz
painful redistribution of bone. enlarged skull and square jaw. more common in elderly, inc IOP. angioid streaks, retinal neov
alopecia
rapid onset loss of hair. rare. autoimmune rxn. secondary to toxic conditions most common
alopecia areata
a small to med patch of hair loss
alopecia areata totalis
condition of total hair loss
trichotillomania
neurotic condition that causes individuals to pull of their hair. most common in children and adolescents
tinea capitis
caused by ringworm-fungus. “black-dot” appearance. mild to moderate scaling with or without inflamm and pustules
sqamous cell carcinoma
from sun exposure. slow growing. can spread
contact dermatitis
nickel dermatitis. from cheap jewelry and zyl frames. generic name applied to acute inflamm reactions. allergen elicits a type IV (delayed) hypersens rxn. toxic irritant rxn and true allergic rxn.
auricular tophi
in gout. uric acid deposits along ear
polychondritis
inflamm of the cartilage. red and leathery appearance of the ear. can affect all cartilage esp the trachea
heriditary benign telangiectasia
little fan like patterns of new vessels on ear
Cushing’s moon face
linked to inc adrenal hormone or exogenous steroid use. round face w/ red cheeks. hirutism (facial hair in females). acne. inc fat tissue around face and trunk. extremities of normal caliber.
hirutism
excessive facial hair growth in females. need to rule out polycystic ovary syndrome-can become cancerous.
nephrotic syndrome
linked to kidney dz. edematous and pale face. swelling 1st appears around eyes on awakening. can become severe. swelling around ankles later in the day. will have pitting edema. renal failure.
florid myxedema
linked to hypothyroidism. dull puffy face. swelling around eyes. no pitting edema. skin is dry and thickened. hair and eyebrows are dry, coarse, and thinned.
parotid enlargement
can be chronic or acute. usually bilateral but not symmetrical. swelling is anterior to ear lobes and about the angle of the jaw. chronic assoc w/ obesity, cirrhosis, and Sjogren’s
Parkinson’s
mask like face with dec blinking. classic stare with chin down and eyes peering upward. skin slightly oily with blepheritis. neck and upper body flexed forward.
Bell’s Palsy
unilateral facial paralysis of sudden onset involving CN VI. ususally viral etiology. affects both upper and lower face. no other neuro findings. good prognosis.
upper motor neuron defect
CVA, or tumor. affects the lower face, so pts can lift both brows and wrinkle forehead. pos for other neuro signs. prognosis is guarded.
impetigo, bacterial-staph
infectious. preschool and young adults. vesicle, red based with honey colored crust (scab). sx: none to mild. slow spread, onset days to wks. scars rare. contagious. tx oral Abs
erysipelas
infectious bacterial. form of superficial/interstitial cellulitis, strep, or staph. spreading infection of subcutaneous tissue. mostly older adults, diabetics, obesity. tender to painful. red, sharply demarcated, warm, swollen. sx: malaise, fever. more common in men. prompt tx oral Abs
perioral dermatitis
infectious bacterial. onset between 15-40 yo, most common young women. small multiple acneiform papules, scaling. from over use of topical creams. sx: mildly pruritic, tx: oral Ab
herpes simplex (HSV)
infectious viral: aka: “cold sores, fever blisters”. reactivation of virus. stress common trigger, common in all ages and sex. sx: prodrome, pain, burning. lip most common site. vesicle rash, in phase to crusting lasting 2-6 wks. tx: oral acyclovir. risk of ocular involvement (will scar)
herpes zoster (HZV or VZV)
infectious viral. aka “shingles”. reactivation of chicken pox virus (varicella). stress common trigger. sx: prodrome, pain, burning. rash out of phase, vesicle, open to crusting lasting 10 dys. full resolution 4-5 wks. risk of oc involvement w/ CN V involvement (Hutchinson’s sign-nose). tx: oral acyclovir. contagious.
tinea corpuris
infectious fungal. aka “ringworm”. more common in children. circular or oval rash w/ a raised red border and a clearing scaly central area. sx: mildly pruritic. tx: oral antifungals. can be chronic and long term.
molluscum contagiosum
infectious viral. superficial poxvirus infection by direct contact. common in young children, young adults, and HIV pts. waxy or pearly, 1-3 mm, grouped umbilicated papules. face and eyelid. asympt. to mild itch. full resolution 4-8 wks. tx: freezing or curettage. center contains a yellow “cheesy” material when active.
milia cysts
epidermal cysts containing keratin. any age group. face and eyelids common. white to yellow, 1-2mm, grouped papules. assoc w/ trauma (ie constant rubbing). asympt. tx: excised. no umbilicated papules
acne vulgarus(common)
metabolic dermatitis. common in teens and young women. lighter skin types and strong FHx. hormone linked. signs: comedones, papules and papulopustules. risk of scars. tx mild: topical benzoyl peroxide and retinoids w/ topical or oral clindamycin or erythromycin.
cystic acne
metabolic dermatitis. males>females. age 10-20 yo. hx of same in parents. assoc w/ PCOS and XYY syndrome. signs: recurrent inflamm nodules and active scarring. tx: accutane.
vitiligo vulgaris
pigmentary disorder. idiopathic, acquired, circumscribed hypomelanosis. assoc. w/ autoimmune disorders. asympt, slow progression. non scaling or inflammatory. tx; skin bleaching agents, cosmetics. DDx tinea, SLE, and rosacea
melasma
pigmentary disorder. flat pigmentary darkening/deposit of the facial skin. assoc w/ pregnancy and BCP. common forehead and malar surfaces. will fade after term or d/c or meds (up to 2 yrs). tx: skin bleaching agents. DDx: SLE and Rosacea
Rosacea
metabolic dermatitis. common adults 30-50 yo). only on face.papules, pustules and telangiectasias. malar surfaces. dry eye dz. triggered by spicy foods, alcohol, stress and UV. can be caused by over use of topical steroids. tx: oral TCN or topical metronidazole (expensive).
telangiectasias
permanent dilation of preexisting capillaries and arterioles. net or fan like pattern from a focal point/lesion. blanches w/ pressure. assoc w/ hereditary colon dz, rheumatologic dz, and Rosacea depending on location.
spider nevus/ spider angioma
type of hemangioma. type of telaniectasia with capillaries radiating from a central arteriole. pressure on central arteriole blanches. more common in children, pregnancy, and BCP use. more common on face then trunk. can be assoc w/ elevated estrogen and liver dz.
systemic lupus erythematosus (SLE)
aka “lupus”. rheumatologic eczema(inflamm). non pustular scaling rash over the malar surfaces. no telangiectasias. constant.
psoriasis
metabolic eczema. 2% pop, heredity common. symmetrical areas. elbows, knees, scalp. 20% nail dz “pitting”. nail dz assoc w/ uveitis. constant for life.
seborrhea
metabolic dermatitis. common chronic scaling inflamm, seb glands. hypersensitivity to yeast, white to yellow oily scale. common in children and >30 yo. face, beard, eyebrows, lids (bleph), and scalp. more common in men. common in Parkinson’s and AIDS. tx: dandruff shampoos, lid scrubs, topical antifungal and steroid creams. no easy tx.
atopic dermatitis
metabolic dermatitis. is actually an eczema (pruritic inflamm). etiology unknown, genetic. males>. 35% develop asthma later in life. sx: symmetrical itchy dermatitis. face (lids), neck, lower arms, behind knees and toes. inc freq of allergies (IgE). remission>40%. dark circles under eyes and bright red cheeks.infraorbital fold: “dennie-mogan syndrome”. assoc w/ subcapular cataracts. most common OD visit is superior lid dermatitis. refer to dermatologist.
contact dermatitis: toxic irritant
toxic irritants: nickel, soaps, plants, etc. rxn: redness-blistering-erosion-crusting-shedding and scaling. sharp margins. tx: remove irritant, wet dressing, for exudative, topical steriods prn. heals 1-2 wks after removal of irritant.
contact dermatitis: allergic type
most common poison ivy then neomycin. poison ivy: delayed hypersens 8hrs-21dys. rxn: redness-vesicles-bullae-erosion-seepage-crusting-shedding and scaling. no scarring. must of had contact w/ resin, seepage will not spread.
seborrheic keratosis
neoplasm. benign epithelial tumor. “stuck on” appearance. onset rare before 30 yo, m>f. early flat “tan macule” later verrucous (rough) papules/plaques. few to hundreds. face trunk and arms. tx: cryosurgery. well circumscribed crusty lesion
actinic keratosis
pecancerous cutaneous epithelial lesion. onset middle age, m>f. sun exposed area, 1-3mm, rough scaly. risk squamous cell CA. forehead, cheeks, nose, hands and arms. many spontaneous remission. tx: cryosurgery
basal cell carcinoma
most common cancerous skin lesion. onset >40yo, m>f, genetic. sun exposed areas, lighter skin types. frequent invasion but metastases rare. slow growing. hard nodule with telangiectatic vessels over the margin, pearly rolled edge, central ulceration, bleeds. tx: cryosurgery and excision. 95% cure rate. typical location: lower lid near medial canthus
sebaceous hyperplasia
look like elevated basal cells, often confused. common. onset >40yo, m>f, genetic. soft yellow papules, 1-3mm raised donut shaped. forehead and cheeks, sun exposed areas. will have a central pore. tx: electrocautery
squamous cell carcinoma
2nd most common cancerous skin lesion. onset >55, m>f, genetic. lighter skin types, sun exposed. slow growing, frequent invasion, metastases possible. hard nodule, adherent scale. asympt. will ulcerate and bleed. tx: excision w/ radiation. 90% 5-yr rate.
nevus
benign skin tumors of nevus cells. anywhere. sun exposed areas. most common avg # 15-40, AA 2-11. brown to flesh color. macule (flat) to papule (raised). risk of coverting to dyplastic nevus. appears before age 30. light to dark brown, well circumscribed and well defined margins. does not grow in size (pig can inc). congenital or early onset.
freckle
flat tan hyperpig area 1-6mm that appears before age 3
dyplastic nevus
precursos to melanoma skin tumors. family Hx risk. highest risk for red hair and blue eyes. variegated brown to flesh color. irregular shape and raised areas in lesion. risk of melanoma doubles w/ dx of just one dyplastic nevus.
malignant melanoma
very fast metastases. 1-2% all CA deaths. onset 30-50yo. f>m. highest risk light skins. most common site upper back, also back and legs. excessive UV and sun exposure. irregular color, shape, size. tx: total excisional biopsy. 3x death rate of other skin cancers. 33-93% survival rate. pencil test.