Rosacea

Question 1

Pathogenesis of Rosacea:

Answer 1

multifactorial,

• vascular hyperreactivity
• chronic solar damage
• hyperirritable skin
• possible role of Demodex

Question 2

Histopath of rosacea:

Answer 2

Perivascular and perifollicular lymphohistiocytic infiltrate

• vascular ectasia
• mild edema
• sebaceous hyperplasia

Question 3

What percent of rosacea patients have ocular symptoms? Tx?

Answer 3

50%

• symptoms of dryness/foreign body sensation, photosensitivity, burning/stinging
• Tx with doxycycline

Question 4

What is Morbihan disease and how do you treat it?

Answer 4

solid facial edema in rosacea patients, tx with isotretinoin

Question 5

Granulomatous rosacea presentation? Tx?

Answer 5

• discrete yellow/brown-red firm papules of nodules on background of erythema
• Tx with Doxy or isotret

Question 6

Lupus miliaris disseminatus faciei presents as?

Answer 6

• yellow- brown to red monomorphous papules on the face (similar to granulomatous rosacea) with lower eyelid involvement