OnlineMedEd: Dermatology - "Papulosquamous"

Question 1

Describe the pathophysiology of seborrheic dermatitis.

Answer 1

It is an autoimmune disorder in response to fungus.

Question 2

Seborrheic dermatitis affects areas with ___________.

Answer 2

hair

Question 3

Treat seborrheic dermatitis with _______________.

Answer 3

selenium shampoo

Question 4

Which cell type is involved in psoriasis?

Answer 4

Helper T cells

Question 5

Review the morphologic description of psoriasis.

Answer 5

• Raised salmon plaques
• Silver scales
• Found on extensor surfaces or gluteal fold

Question 6

The first-line treatment for psoriasis is ______________.

Answer 6

UV light

Second-line treatment it topical steroids.

Question 7

The pathophysiology of _____________ is unknown.

Answer 7

pityriasis rosea

Question 8

Pityriasis rosea is treated with _______________.

Answer 8

observation

It is self-limiting.

Question 9

_____________ appears as purple papules connected by a lacy network of white lines.

Answer 9

Lichen planus

Question 10

How do you treat lichen planus?

Answer 10

Topical steroids

Bonus points: look for medication changes that might have caused it.

Recall the P’s of lichen planus: purple papules precipitated by pharmacologics.