A 32 year-old woman comes to your office because she is concerned about a mole in her right thumb. She has had it for over three months. It is growing in size and changing in colors. In the physical examination, you notice a lesion under the nail. She reports that she is positive for the CDKN2A suppressor gene mutation. Of the following, patients with this mutation are at increased risk for which of the following types of cancer?

By usmlevideoss