Question

question 1
which of the following is a primary skin lesion:
bulla
lichenification
scales
erosion

question 2
the diagnostic term xero/derma literally means:
oily/skin
skin/redness
dry/skin
skin/erosion

question 3
the diagnostic term cheil/itis literally means:
tongue inflamed
mouth inflamed
gum inflamed
lip inflamed

Explanation:

Question 1: Primary skin lesions are initial, direct manifestations of a skin condition. Bulla is a fluid-filled blister ≥1cm, a primary lesion. Lichenification, scales, and erosion are secondary (result from evolution/scratching of primary lesions).
Question 2: "Xero-" means dry, "-derma" means skin.
Question 3: "Cheil-" means lip, "-itis" means inflammation.

Answer:

1. Bulla
2. dry/skin
3. lip inflamed