Fever, Conjunctival Injection, and a Facial Papule

Case
A mother brings her 10-year-old son to an urgent care center with a fever, conjunctival injection, and pharyngitis. She points out a smooth papule on his face that developed over the last few days. She says that he played with some kittens at a friend’s house about a week earlier, and she wonders if maybe he is extremely allergic to cats, because he has been rubbing his eyes ever since.

View the image taken (Figure 1) and consider what your diagnosis would be.

Resolution of the case is described on the next page.