Autoimmune myelofibrosis (AIMF) is an uncommon cause of myelofibrosis associated with favorable outcome. Primary AIMF, AIMF without a known systemic autoimmune disorder, has been described in adults, but never in children. Here, we present, for the first time, an apparent case of primary AIMF in a 15-year-old boy admitted with profound hypoproliferative anemia.
Keywords: anemia; autoimmunity; lymphopenia; myelofibrosis.
© 2020 The Authors. eJHaem published by British Society for Haematology and John Wiley & Sons Ltd.