Common Skin Disorders

Question 1

Atopic dermatitis to Allergic rhinitis to asthma

Answer 1

Atopic march

Question 2

Atopic dermatitis is diagnosed on the basis of 3/5 major features:

Answer 2

Pruritus 
Facial and extensor eczema in infants and children
Flexural eczema in adolescents
Chronic or relapsing dermatitis
Personal or family hx of AD

Question 3

Lesions are limited to the area of contact with the external substance

Answer 3

Allergic CD

Question 4

Lesions are due to strong chemicals that penetrate the epidermal barrier

Answer 4

Irritant CD

Question 5

Diaper rash: irritant or allergic CD

Answer 5

Irritant CD

Question 6

Greasy scalp (cradle cap)

Answer 6

Seborrheic dermatitis

1st 6 months of life-physiologic overproduction of sebum

Question 7

Erosions covered with honey-colored crusts

Answer 7

Impetigo

Question 8

Depth of invasion is until the upper epidermis. Usually caused by what organisms?

Answer 8

Impetigo

Staph aureus and group A streptococcus

Question 9

Entire epidermis is involved

Answer 9

Ecthyma

Question 10

Tender, warm, erythematous plaques with ill-defined borders

Answer 10

Cellulitis

Question 11

Invasion if bacteria into the deep dermis and subcutaneous fat. What are the organisms?

Answer 11

Cellulitis

Strep, staph and H. Influenzae

Question 12

Mild rubbing of the skin results in epidermal separation leaving a shiny, moist, red surface

Answer 12

+ nikolsky sign

Question 13

Toxin in SSSS

Answer 13

Staph. exfoliatin A

Question 14

Causative agent of Tinea versicolor?

Answer 14

Malassezia furfur

Question 15

“Spaghetti and meatballs”

Answer 15

Malassezia furfur

Question 16

“Beefy erythema with elevated margins and satellite red plaques”

Answer 16

Candidiasis

Question 17

S-shaped burrows are diagnostic

Answer 17

Scabies

Question 18

Treatment for scabies

Answer 18

Permethrin 5%

Question 19

Platelet trapping with consumptive coagulopathy

Answer 19

Kasabach-Merritt syndrome

Question 20

White or yellow 1-6mm discrete papules with central umbilication

Answer 20

Molluscum contagiousum

Question 21

Presents with thick silvery scales, nail involvement and isomorphic phenomenon

Answer 21

Psoriasis

Question 22

Management of Psoriasis

Answer 22

Topics steriods followed by phototherapy (UVL)

Question 23

Oval or round, fixed, red skin lesions with dusky central zone are know as _____ and seen in what disease.

Answer 23

Target or iris lesions seen in Erythema multiforme

Question 24

Condition related to drug ingestion with NSAIDs, sulfonamides and anticonvulsants

Answer 24

Stevens Johnson Syndrome

Question 25

SJS should be seen in at least 2 mucosal surfaces like

Answer 25

Oral
Genital
Urethral
GIT
Respiratory tract

Question 26

> 30% of BSA involvement

Answer 26

Toxic epidermal necrolysis