Hemorrhagic cystitis is a common complication following the use of cyclophosphamide. Associated dysuria can be painful and there are few good options to relive pain. Phenazopyridine has historically been utilized for dysuria and is available over the counter. However, it is associated with hematologic side effects with prolonged use.

Patients who undergo hematopoietic stem cell transplantation may present with a variety of dermatologic complications. Clinicians must be careful to maintain a broad differential and seek a biopsy proven diagnosis as soon as possible when there is ambiguity as to cause.