A mother brings her 3-year-old son to urgent care with multiple skin lesions on his thumb, which he frequently sucked for comfort. The grouped configuration of lesions was painful and had developed over the last 5 days to become vesicles. Upon exam, you note that the boy has a nearly healed cold sore on his lip, pain in his wrist, and an elevated temperature. View the photo and consider what your diagnosis and next steps …
Read MoreAdult with Painful Lesion That Enlarges and Darkens
An 80-year-old man reports waking up with a localized area of erythema on his forehead. He says that he did not worry about it until the lesion slowly became white and then started turning blue over a few hours. He says that the lesion is painful and is getting larger and darker. He reports no headaches, muscle pain, abdominal pain, sweating, or tremors. View the image taken (Figure 1) and consider what your diagnosis would …
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