Exam 1 derm key points

Question 2

key points: dermatitis herpetiformes

Answer 2

a/w celiac. Intensely pruritic, easily rupture vesicles

Question 3

key points: porphyria cutanea tard

Answer 3

painless blistering on hands, elevated urinary porhyrins

Question 4

key points: erythema migrans

Answer 4

target lesion, tick bite

Question 5

key points: cellulitis

Answer 5

staph, gram stain for Dx, diffuse spreading superficial infx, fever, chills. common in diabetics and people w/ venous insufficience

Question 6

key points: folliculitis

Answer 6

in hairy areas. pustules with hair growing out of them

Question 7

key points: erisipelas

Answer 7

well circumscribed papule, pain, fever, malaise and other infx sxs

Question 8

key points: discoid lupus

Answer 8

when scale is scraped, spiny projections. sun exposed area.

Question 9

key points: herpes simplex

Answer 9

grouped vesicles on erythematous base

Question 10

key points: herpes zoster

Answer 10

dermatomal pattern, unilateral. neuritic pain lasting long after skin signs disappear.

Question 11

key points: varicella

Answer 11

chicken pox. see lesions in various stages. tzanck smear. varivax vaccine.

Question 12

key points: scabies

Answer 12

burrows, pruritic, mites present

Question 13

key points: insect bites

Answer 13

duh

Question 14

key points: molluscum contagiosum

Answer 14

discrete, umbilicated papules. very infectious. no itching.

Question 15

key points: hand, foot & mouth

Answer 15

the name says it all. painful vesicles in mouth, maculopapular everywhere else

Question 16

key points: roseola infantum

Answer 16

abrupt high fever for the prodrome. fine, blanchable mac and pap

Question 17

key points: rubella (german measles)

Answer 17

high risk to fetus, generalized lymphadenopathy, fever. vaccine: MMR

Question 18

key points: erythema infectiosum (fifth’s disease)

Answer 18

slapped face appearance. lacy rash. anemia concerns

Question 19

key points: rosacea

Answer 19

flushing, telangiectasis, adult acne, if untreated: rhinophyma

Question 20

key points: rubeola

Answer 20

cough, coryza, conjunctivitis

Question 21

key points: acne

Answer 21

cystic lesions break walls and spill into dermis. blockage of follicles w/ keratinized tissue

Question 22

key points: tinea versicolor

Answer 22

spaghetti and meatballs w/ KOH. affected skin will not tan normally

Question 23

key points: tinea corporis

Answer 23

annular lesions on the body. hyphae w/ KOH

Question 24

key points: tinea cruris

Answer 24

dermatophyte infx in the groin, buttock fold region. hyphae w/KOH

Question 25

key points: tinea pedis

Answer 25

4 types: mocassin, interdigital, bullous/inflammatory, ulcerative. athlete’s foot

Question 26

key points: impetigo

Answer 26

honey colored crust. staph.

Question 27

key points: psoriasis

Answer 27

silvery scales on erythema. psoriatic arthritis. auspitz sign. koebnerization. pitting nails.

Question 28

key points: pityriasis rosea

Answer 28

christmas tree pattern, herald patches, cigarette paper appearance, trunk

Question 29

key points: seborrheic dermatitis

Answer 29

greasy scales. cradle cap in infants. head, nasolabial folds, chest, and buttcrack in adults.

Question 30

key points: contact derm

Answer 30

edema, papules can be localized to sight of exposure or generalized

Question 31

key points: atopic eczema

Answer 31

atopic triad: eczema, asthma, allergic rhinitis. extensor surfaces and face on kids. flexural and symmetrical on adults.

Question 32

key points: mycosis fungoides

Answer 32

plaques w/ lymphedema due to t-cell lymphoma. Sezary cells in blood is a late sign

Question 33

key points: malignant melanoma

Answer 33

ABCD. bleed easily. 4 types: superficial, lentigo maligna, acral lentiginous, nodular (most aggressive

Question 34

key points: squamous cell carcinoma

Answer 34

ulcerated, many colors. can arise from actinic keratosis, leukoplakia

Question 35

key points: basal cell carcinoma

Answer 35

rolled borders, telangiectasia, bleed easily. most common type of skin cancer. 4 types: pigmented, superficial, ulcerative, nodular.

Question 36

key points: actinic keratosis

Answer 36

sun exposure. easier to feel than see. scale or dry rough patch

Question 37

key points: keratoacanthoma

Answer 37

rapid growth. self resolving. nodular. can look like SCC.

Question 38

key points: seborrheic keratosis

Answer 38

greasy, stuck on, hyperpigmented appearance. Variations: stucco keratoses, dermatosis papulosa nigra, lesler trelat sign (sudden appearance w/ inflammation, possibly malignant)