This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Myeloproliferative Disorder, Subject name: Pathology
Chronic myeloproliferative disorder includes all except: 
Select and explain. 
A. CML, B. Polycythemia vera, C. Essential thrombocytosis, D. Erthyroleukemia
D: Erthyroleukemia
Answer: D: Erthyroleukemia 
Explanation: Ans: D (Erthyroleukemia) Ref: Robbins Pathologic Basis of Disease, 8th editionExplanation:List of Myeloproliferative DisordersChronic myeloid leukemia CMLPolycythemia veraEssential thrombocytosisPrimary myelofibrosisChronic eosinophilic leukemiaChronic neutrophilic leukemiaSystemic mastocytosis (?)- In 200L the World Health Organization classified "chronic eosinophilic leukemia/ hvpereosinophilic syndrome" and chronic neutrophilic leukemia under "Chronic myeloproliferative diseases".ErythroleukemiaIt is a subtype of AMLIt is classified as an M6 subtype of acute myelogenous leukemia (AML) in the French- American-British (FAb) classification system on the basis of morphologic and cytochemical criteria.