UWorld - Dermatology

Question 1

Suppurative hidradenitis - affects?

Answer 1

Chronic follicular occulsive disease that affects axilla, groin and inframammary regions

#painful inflammatory nodules 
#draining sinus tracts

Question 2

Patient chops firewood and gets rash - diagnosis? Presents as?

Answer 2

Sumac dermatitis. Erythematous rash with occasional vesicles on forearms

Question 3

Comedonal Acne presents as? treatment?

Answer 3

Topical retinoids

Comedones on forehead, nose, chin

#Salicylic
#azelaic
#glycolic acid

Question 4

Inflammatory acne - presents as? treatment for mild, moderate and severe?

Answer 4

Topical retinoids and benzoyl peroxidase

Inflamed papules (<5 mm) with pustules and erythema

Question 5

Nodular acne - presents as? Treatment for moderate, severe and unresponsive?

Answer 5

topical retinoid and benzoyl peroxidase and topical antibiotics

Large (>5mm) nodules that can appear cystc, sinus tracts with scarring

Question 6

Herpetic whitlow?

Answer 6

Herpes infection of hand

Question 7

Ichthyosis vulgaris - presentation? worse when?

Answer 7

Skin normal at birth and gradually progresses to dry scaly “lizard skin”

winter

Question 8

Molluscum contagiosum caused by?

Answer 8

Pox virus

Question 9

Primary biliary cirrhosis associated with what cutaneous eye findings?

Answer 9

zanthomas and zanthelasmas

Question 10

Hordeolum?

Answer 10

purulent infection of eyelid glands

Question 11

Acne drug that result in phototoxic skin reaction?

Answer 11

doxycycline

Question 12

Cavernous hemangiomas of brain/viceral associated with?

Answer 12

von Hipple-Lindau disease

Question 13

Pt presents with recurrent chalazion - next step?

Answer 13

Histology to rule out meibomian carcinoma or basal cell carcinoma

Question 14

Old patient resents with purplish non-inflammed skin discoloration. Labs normal. Cause?

Answer 14

Senile purpura - perivascular connective tissue atrophy leading to eccymosis

Question 15

Treatment for dematitis herpetiformis?

Answer 15

dapsone

Question 16

Fungal infection erythema in the area and high fever - think?

Answer 16

Cellulitis (fungal infection as a nidus for bacteria)

Question 17

pt presents with circular patches with central clearing and scaly borders- diagnosis?

Answer 17

Tinea corporis infection

Question 18

Graft vs Host disease - B or T cell primarily involved?

Answer 18

T cells

Question 19

Acanthosis Nigracans associated with?

If sudden?

Answer 19

#Diabetes
#PCOS
#Obesity
#Addisons (if on elbows and face)

Malignancy (mucus membranes, palms, soles)

Question 20

Parkinson’s diseases associated with what skin condition?

Answer 20

Severe seborrheix dermatitis

Question 21

Increased skin tags associated with?

Answer 21

#Diabetes
#Pregnancy
#Crohn's Disease (perianal)