Question 1: Which of these is NOT considered a primary lesion?
Vesicle
Erosion
Papule
Wheal
Explanation: Primary lesions are the basis of a system of dermatologic nomenclature.
These include macules, papules, plaques, vesicles, pustules, bullae, cysts, wheals
(hives), nodules, and tumors, telangiectasia, and comedones. An erosion is considered
a secondary lesion; that is described when the surface of the skin has been removed.
Erosions are typically superficial involving the epidermis and a varying amount of
dermis.
Question 2 : Which of these is NOT considered a secondary lesion?
Vesicle
Erythema
Scale
Atrophy
Explanation: Secondary lesions are changes that may occur to primary lesions. These
include scale, crust, excoriation, erosion, color or pigmentation change, scarring,
fissures, atrophy, lichenification, burrow, and erythema.
Question 3: What is the best descriptive term of the primary lesion on the lower
eyelid in this image?
Annular
Serpiginous
Endophytic
Umbilicated
Explanation: The solitary papule in this image demonstrated a central dip or
depression which is referred to as umbilicated. Annular refers to ring shaped.
Serpiginous means snake like. Endophytic means a lesion is growing inward, deeper
into the tissues
, Question 4: What is the descriptive term that describes the solitary plaque in this
image?
Annular
Serpiginous
Endophytic
Herpetiform
Explanation: Annular is a descriptive term that means ring like. The exam finding in
this image shows a solitary plaque that is slightly erythematous (red) and annular
(ring shaped). Serpiginous means snake like. Endophytic means a lesion is growing
inward into deeper tissues. Herpetiform refers to a grouped appearance of lesions.
Question 5: What is this brown primary lesion on the eyelid that is observed in this
photograph?
Macule
Plaque
Vesicle
Papule
Explanation: A macule is a non-palpable lesion that measures less than 1cm. This is
an example of a solar lentigo, acquired flat brown macule on sun exposed skin.
Question 6: What is the primary lesion that is observed in this photograph?
Bullae
Pustule
Vesicle
Papule
Explanation: A pustule is a fluid filled vesicle that contains pus.