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!

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A 56-year-old man comes to his outpatient PA for evaluation of a painless “mole” that has slowly appeared on his face. Past medical history is notable for hypertension and atherosclerosis. Family history is notable for melanoma in his mother. Temperature is 37.1°C (98.8°F), blood pressure is 147/84 mmHg, pulse is 76/min, and respiratory rate is 16/min. Examination of the patient’s skin reveals the following finding:


Reproduced from: WIkimedia Commons


A similar lesion is also noted on the patient’s chest and has a “stuck-on” appearance. Cardiac, pulmonary, and abdominal examinations are noncontributory. Which of the following best describes the pathophysiology of this patient’s lesion?

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