Pigmentation skin disorders Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

Learning videos

Flashcards

Expert reviewed

Spaced Repetition

Mobile app

Custom Quizzes

1 of 7

A 20-year-old woman comes to her outpatient provider for evaluation of a mole on the left arm. The patient first noticed the mole 3 years ago and reports that it has not changed in size. The lesion is neither painful nor pruritic. Medical history is notable for asthma, for which she intermittently uses an albuterol inhaler. Her father was recently diagnosed with melanoma. She is part of her university’s cross-country team and has had several episodes of sunburn over the past year. Temperature is 37.6°C (99.7°F), blood pressure is 115/71 mmHg, and pulse is 67/min. Examination of the patient’s left upper arm reveals the following finding:

 A close-up shot shows a dark, irregularly shaped mole on light skin, with a ruler marked in inches and centimeters below it for scale. The mole has varied shades of brown and black.
Reproduced from: Wikimedia Commons

 The lesion is flat and soft to palpation. Cardiac, pulmonary, and abdominal examinations are noncontributory. Which of the following best describes the pathophysiology of the patient’s skin finding? 

Elimination tool

Choose an option: