Rat bite fever (RBF) is a rare infectious disease with a nonspecific presentation and potentially fatal complications. We report a case of RBF presenting as palpable purpura.
A female patient in her 50s presented with a 5-day history of fever, chills, diffuse pain, and an eruption. She reported having a pet rat and, while denying any bites or scratches, remarked that the rat often licks her hand, adding that 2 days earlier, she had accidentally cut her index finger.
Kwon CW, Somers K, Scott G, Mercurio MG. Rat Bite Fever Presenting As Palpable Purpura. JAMA Dermatol. 2016;152(6):723-724. doi:10.1001/jamadermatol.2015.6034