Skin cancer Quiz: Ace Your Exams
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A 49-year-old man comes to the office with a pigmented lesion on his torso. He first noted the lesion 2 years ago and says that it has recently increased in size. He works as a tour guide in Miami and spends most of his time outdoors. Past medical history is significant for frequent sunburns during childhood. Temperature is 37.0°C (98.6°F), pulse is 82/min, respirations are 16/min, and blood pressure is 124/74 mmHg. Physical examination shows a hyperpigmented lesion measuring 10-mm on the torso, which is shown in the image below:

Retrieved from: Wikimedia Commons
Excisional biopsy of the lesion is performed. Mutations in which of the following genes are most likely to be present in this tissue?

Retrieved from: Wikimedia Commons
Excisional biopsy of the lesion is performed. Mutations in which of the following genes are most likely to be present in this tissue?
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