Exam 1 derm etiologies & hormones

Question 1

effect on skin norepinephrine

Answer 1

profuse sweating

Question 2

effect on skin excess thyroid hormone

Answer 2

warm, moist skin, pretibial myxedema

Question 3

effect on skin hypothyroid

Answer 3

dry, cool, thickened skin

Question 4

effect on skin parathyroid hormone

Answer 4

metastatic calcification

Question 5

effect on skin growth hormone

Answer 5

epidermal hyperplasia, hyperpigmentation

Question 6

effect on skin glucocorticoids

Answer 6

cushing’s sxs - striae, atrophy, purpura, steroid acne, hirsutism, moon face, buffalo hump

Question 7

effect on skin adrenocorticoids

Answer 7

addison’s - hyperpigmentation especially in gingiva due to melanocyte stimulation

Question 8

effect on skin androgens

Answer 8

excess sebum, acne, alopecia, hirsutism, testosterone/DHT

Question 9

etiology: dermatitis herpetiformes

Answer 9

deposition of IgA in dermal papillae

Question 10

etiology: porphyria cutanea tard

Answer 10

common porphyria. a/w ingested estrogen, liver dx, hepatitis

Question 11

etiology: erythema migrans

Answer 11

tick: b. burgdorferi

Question 12

etiology: cellulitis

Answer 12

staph or group A strep

Question 13

etiology: folliculitis

Answer 13

plugging of hair follicles w/ sebum, pus commonly a/w staph

Question 14

etiology: erisipelas

Answer 14

superficial cellulitis due to beta hemolytic strep

Question 15

etiology: discoid lupus

Answer 15

sun exposed area. may be a/w systemic lupus (SLE)

Question 16

etiology: herpes simplex

Answer 16

HSV1 oral, HSV2 genital

Question 17

etiology: herpes zoster

Answer 17

shingles, varicella zoster virus

Question 18

etiology: varicella

Answer 18

chicken pox, varicella zoster virus

Question 19

etiology: scabies

Answer 19

mites

Question 20

etiology: insect bites

Answer 20

insects. duh.

Question 21

etiology: molluscum contagiosum

Answer 21

poxvirus

Question 22

etiology: hand, foot & mouth

Answer 22

coxsackie A16 virus

Question 23

etiology: roseola infantum

Answer 23

herpesvirus 6 & 7

Question 24

etiology: rubella (german measles)

Answer 24

rubella virus

Question 25

etiology: erythema infectiosum (fifth's disease)

Answer 25

parvovirus B19

Question 26

etiology: rubeola

Answer 26

paramyxovirus

Question 27

etiology: rosacea

Answer 27

adult acne, many causes

Question 28

etiology: acne

Answer 28

puberty, obstruction of sebaceous follicles, can be androgen dependent

Question 29

etiology: tinea versicolor

Answer 29

p. ovale or yeast, high humidity, cortisol, or sebum | DERMATOPHYTES

Question 30

etiology: tinea corporis

Answer 30

e. floccosum/t. rubrum (DERMATOPHYTES)

Question 31

etiology: tinea cruris

Answer 31

t. rubrum (DERMATOPHYTES)

Question 32

etiology: tinea pedis

Answer 32

t. rubrum (DERMATOPHYTES)

Question 33

etiology: impetigo

Answer 33

staph aureus, pyogenes. (BACTERIAL)

Question 34

etiology: psoriasis

Answer 34

chronic skin disease, sometimes a/w autoimmune

Question 35

etiology: pityriasis rosea

Answer 35

unknown

Question 36

etiology: seborrheic dermatitis

Answer 36

likely p. ovale. common chronic inflammatory dermalogical condition

Question 37

etiology: contact derm

Answer 37

allergic: delayed sensitivity irritant: repeated exposure

Question 38

etiology: atopic eczema

Answer 38

a/w atopic triad: atopic dermatitis, asthma, allergic rhinitis

Question 39

etiology: mycosis fungoides

Answer 39

cutaneous t-cell lymphoma

Question 40

etiology: malignant melanoma

Answer 40

melanocyte mutation. can metastasize

Question 41

etiology: squamous cell carcinoma

Answer 41

cancer. can arise from actinic keratosis or leukoplakias

Question 42

etiology: basal cell carcinoma

Answer 42

most common skin cancer. forms in basal layer of epidermis

Question 43

etiology: actinic keratosis

Answer 43

due to sun exposure. benign

Question 44

etiology: keratoacanthoma

Answer 44

rapidly growing neoplasm of epithelium

Question 45

etiology: seborrheic keratosis

Answer 45

benign hyperpigmented lesion from epidermal hyperplasia