Intro To Derm

Question 1

4 yo presents w/ Dennie Morgan pleats, xerosis and ichthyosis, and an itchy eczema on the flexor surfaces. What is the dg and tx?

Answer 1

Atopic dermatitis

Moisturizer, avoid irritants that likely caused the dermatitis

Question 2

Pt presents w/ a fever and some warm tender plaques that feel boggy to palpation. Pt doesn’t recall any trauma recently. What’s the dg? Cause? Tx?

Answer 2

Cellulitis

D/t S aureus or Strep pyogenes

ATB (cephalosporin, macrolide, Clindamycin)

Question 3

20-30 yo pt presents w/ tender nodules and plaques on their ankles, shins and knees. They aren’t ulcerating. They hurt and feel warm. Dg? Cause? Tx?

Answer 3

Erythema nodosum

Hypersensitivity response (infection, meds/OCs, herbs), often idiopathic

Anti-inflammatories and rest

Question 4

Pt presents w/ scaly silver plaques on an erythematous base over their elbows, knees, and on their belly. When removed, the plaques reveal pin-point bleeding. The pt was tx’d for this before and it left weird stains, but it’s back now. Dg? Tx? Genetic predisposition?

Answer 4

Psoriasis

Topical steroids

HLA-B13

Question 5

What are the 3 types of psoriasis?

Answer 5

Plaque type
Pustular type
Guttate type

Question 6

What are the attributes of Guttate type psoriasis?

Answer 6

Onset is post-strep infection in pts w/ genetic predisposition

Spares the palms and soles

Question 7

What is the morphology of cells infected w/ herpes zoster?

Answer 7

Steel gray nuclei