Delayed Presentation of Pityriasis Rubra Pilaris in a Patient on Treatment With Ponatinib.

Pityriasis rubra pilaris (PRP) is a rare dermatologic condition whose etiology is largely unknown. However, some medications, including ponatinib, have been implicated. Our case features an 80-year-old patient who developed PRP after two-and-a-half years of ponatinib use. We present this case due to the rare presentation of ponatinib-induced PRP as well as its significantly delayed presentation.