We read with great interest the article by Gregoire Stalder published in the European Journal of Internal Medicine [1]. We appreciate the authors’ great work. Compared with their findings that thrombocytosis may precede thromboembolic complications in essential thrombocythemia, we found a patient with a normal platelet count who was diagnosed with essential thrombocythemia (ET), a kind of myeloproliferative neoplasm with a JAK2-V617F mutation, which caused postoperative epidural hematoma after lumbar spine surgery, and we would like to share this with the investigators in this field.
