Melasma Quiz

Questions and Answers

What is the most common location category for patches of melasma?

Nasolabial

Centrofacial (correct)

Malar

Mandibular

What are the main factors thought to cause melasma?

Diet, lack of exercise, pollution, and stress

Sun exposure, genetic predisposition, hormone changes, and skin irritation (correct)

Age, gender, geographic location, and occupation

Allergic reactions, medication side effects, poor hygiene, and smoking

What are the characteristics of melasma patches?

Light, regular, poorly defined, hypopigmented papules

Blistering, itchy, raised, red nodules

Rough, scaly, circular, depigmented plaques

Dark, irregular, well-demarcated, hyperpigmented macules to patches (correct)

Who is melasma particularly common in?

Women, especially pregnant women and those taking oral contraceptives or hormone replacement therapy Signup and view all the answers

What size can melasma patches vary from?

0.5 cm to larger than 10 cm Signup and view all the answers

Which of the following is a potential cause of vitiligo?

Sun exposure Signup and view all the answers

Where are the skin lesions most prominent in vitiligo?

Face, hands, and wrists Signup and view all the answers

What is the main sign of vitiligo?

Presence of pale patchy areas of depigmented skin Signup and view all the answers

What is a potential emotional impact of vitiligo?

Depression and similar mood disorders Signup and view all the answers

Which treatment option is NOT mentioned for vitiligo?

Acupuncture Signup and view all the answers

Study Notes

Melasma

The most common location category for patches of melasma is the face, particularly the cheeks, forehead, and upper lip.
The main factors thought to cause melasma are hormonal changes, sun exposure, and genetic predisposition.
Melasma patches are characterized by irregularly shaped, darkened skin patches, often with a clear border and uniform color.

Vitiligo

Vitiligo is particularly common in people with a family history of the condition, and those with autoimmune diseases, such as thyroid disease.
Melasma patches can vary in size from small to large, covering significant areas of the skin.
A potential cause of vitiligo is autoimmune destruction of melanin-producing cells.
The skin lesions in vitiligo are most prominent in areas exposed to the sun, such as the hands, face, and feet.
The main sign of vitiligo is the appearance of white patches on the skin, often with a sharp border.
A potential emotional impact of vitiligo is low self-esteem, anxiety, and depression.
A treatment option NOT mentioned for vitiligo is antibiotics.