A 58-year-old gardener comes to your office for evaluation of a new lesion on her upper chest. The lesion appears to be "stuck on" and is oval, brown, and slightly elevated with a flat surface. It has a rough, wartlike texture on palpation. Based on this description, what is your most likely diagnosis?

Question

Quizplus · Accepted Answer

This is a typical description for seborrheic keratosis. The "stuck on" appearance and the rough, wartlike texture are key features for the diagnosis. They often produce a greasy scale when scratched with a fingernail, which further helps to distinguish them from other lesions. Frequently, these benign lesions actually meet several of the ABCDEs of melanoma, so it is important to distinguish these lesions to prevent unnecessary biopsy. It is important to consider biopsy whenever there is any doubt, though.

A 58-Year-Old Gardener Comes to Your Office for Evaluation of a New