Case report: Peri-procedural hydroxyurea helps minimize bleeding in patients with Essential Thrombocythemia associated with acquired von Willebrand syndrome.

Background: Essential Thrombocythemia is a chronic myeloproliferative neoplasm characterized by an isolated excessive production of platelets. Extreme thrombocytosis is defined by having a platelet count greater than or equal to 1,000 x 10/L, which may lead to the development of acquired von Willebrand syndrome and complications of excessive hemorrhage.

Case Description: A 74-year-old female patient was brought in for a bone marrow examination regarding elevated platelet count.