Q. A 34-year-old woman comes to the physician’s office for a skin lesion on her upper back for the past 2 months. She says that it is not increasing in size and also it is not causing any pain or itch. Her temperature is 98.6°F (37°C), pulse is 80/min, blood pressure is 126/86 mmHg, and respirations are 14/min. Physical examination shows a 2x2 cm well-circumscribed brown nodule on her back over the superior border of the left scapula. The lesion is rough at the apex and smooth at the base. A dermatoscopic examination of the nodule shows multiple milia cysts, comedo-like openings, and fissures and ridges giving a cerebriform appearance. What is the most likely diagnosis for this patient based on her clinical features?