Management of Hyperpigmentation — MCQs

A 19-year-old woman presents to the dermatology clinic for a follow-up of worsening acne. She has previously tried topical tretinoin as well as topical and oral antibiotics with no improvement. She recently moved to the area for college and says the acne has caused significant emotional distress when it comes to making new friends. She has no significant past medical or surgical history. Family and social history are also noncontributory. The patient’s blood pressure is 118/77 mm Hg, the pulse is 76/min, the respiratory rate is 17/min, and the temperature is 36.6°C (97.9°F). Physical examination reveals erythematous skin lesions including both open and closed comedones with inflammatory lesions overlying her face, neck, and upper back. The patient asks about oral isotretinoin. Which of the following is the most important step in counseling this patient prior to prescribing oral isotretinoin?

What is the optimal wavelength of light emitted by a Wood's lamp for dermatological examinations?

Which drug is generally contraindicated in the management of traumatic hyphema in a patient with sickle cell disease?

Microabrasion using modified Croll technique utilizes:

A 35 years old female presented with acne. She was treated for her acne but after the treatment, she developed pigmentation. Which drug is responsible for hyperpigmentation?

Dermatological manifestation of which of the following diseases?

Which of the following is not true about hydroquinone?

A 50-year-old man with Fitzpatrick skin type V desires treatment for melasma. He was previously treated with triple combination cream with partial response. What would be the most evidence-based next step considering safety and efficacy?

What is the most common association with Acanthosis nigricans?

An increased incidence of vitiligo is found in association with which of the following conditions?