Ultra high platelet count might be a characteristic feature of chronic myeloid leukemia rather than essential thrombocythemia.
Tefferi
Ayalew
A
D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000097:blood* / Q000175:diagnosis; D008297:Male; D010976:Platelet Count; D013920:Thrombocythemia, Essential / Q000097:blood* / Q000175:diagnosis; D014842:von Willebrand Diseases / Q000175:diagnosis