Question

question 19 (1 point)
which skin pigmentation disorder is a genetic condition in which there is an absence of melanin pigment in the body, including the skin, hair, and eyes?
o a chloasma
b albinism
o c leukoderma
d vitiligo

question 20 (1 point)
which sentence best defines rosacea?
o a a skin condition caused by chronic inflammation of the sebaceous glands that is often characterized by redness, dry or oily scaling,
stubborn dandruff, crusting, and/or itchiness
b tiny benign, keratin-filled cysts that appear just under the epidermis and have no visible opening
o c a chronic condition that appears primarily on the cheeks and nose and is characterized by flushing that can progress to pustular-type
breakouts
d a condition involving visible capillaries commonly found on the face, particularly around the nose, cheeks, and chin

question 21 (1 point)
which description best matches a keratoma?
o a a small spot or blemish on the skin
b a superficial, thickened patch of epidermis
o c red patches covered with silver-white scales
d a small brown or flesh-colored skin outgrowth

Explanation:

• Question 19: Albinism is a genetic disorder where there is a lack of melanin in the body, including the skin, hair, and eyes. Chloasma is related to hormonal changes (like in pregnancy), leukoderma is a general term for white patches (not necessarily genetic), and vitiligo is an autoimmune - related loss of melanin (not genetic in the same sense as albinism).
• Question 20: Rosacea is a chronic condition that mainly affects the cheeks and nose, starting with flushing and potentially progressing to pustular breakouts. Option a describes seborrheic dermatitis, option b describes milia, and option d describes telangiectasia.
• Question 21: A keratoma is a superficial, thickened patch of epidermis. Option a could be a freckle or a small blemish, option c describes psoriasis, and option d could be a skin tag or a small growth like a seborrheic keratosis (but not a keratoma in the strict sense of a thickened epidermal patch).

Answer:

Question 19: B. albinism
Question 20: C. a chronic condition that appears primarily on the cheeks and nose and is characterized by flushing that can progress to pustular - type breakouts
Question 21: B. a superficial, thickened patch of epidermis