Zhang is a 67-year-old man who had no history of medical concerns until he was hospitalized for pneumonia. A complete blood count taken during his workup for pneumonia showed pancytopenia, and a biopsy confirmed a diagnosis of acute myeloid leukemia. After multiple rounds of induction therapy, Zhang's bone marrow biopsy showed minimal residual disease and he entered remission. His oncologist recommends an allogeneic hematopoietic stem cell transplant as soon as possible because of the disease's aggressive nature, but he has no match in the registry.