Donor selection for allogeneic hematopoietic cell transplant in a patient with JAK2 V617F primary myelofibrosis and SH2B3/LNK germline variant.

Recently, germline variants have also been found as contributors of disease etiology in myeloproliferative neoplasms (MPN). The consideration of such inherited traits is crucial for clinical management of patients, particularly with regards to indication for allogeneic hematopoietic cell transplant (allo-HCT) and donor selections. Herein, we describe the very instructive case of a 49-year-old woman diagnosed with JAK2 V617F-positive primary myelofibrosis (PMF) who was found to also carry a germline variant in the SH2B3 gene, detailing clinical management, donor selection process for allo-HCT purposes, and appropriate genetic counseling.