<prompt> Answer this question truthfullyWhat is the explanation for the pathophysiology of myelofibrosis?  <response>: <reason> Myelofibrosis belongs to a group of disorders collectively called myeloproliferative disorders. Other members of this group include chronic myelogenous leukemia CML, polycythemia vera PV, and essential thrombocythemia ET. Myelofibrosis can be associated with a variety of medical conditions such as:Malignancies and hematologic disorders like: Hodgkin lymphoma Non-Hodgkin lymphoma Chronic lymphocytic leukemia CLL Essential thrombocythemia ET Polycythemia vera PV Multiple myeloma MM Malignancies with metastases to the bone Infections such as: Tuberculosis TB HIV infection Disseminated trichosporon infection Dengue fever Autoimmune diseases like: Systemic lupus erythematosus SLE Multiple sclerosis MS Sjogrens syndrome Juvenile idiopathic arthritis Endocrine disorders such as: Primary hyperparathyroidism Delta-storage pool deficiency SPD Ghosal syndrome Gray platelet syndrome Chromosome 14q32 duplication syndrome, 700-kb Revesz syndrome Dermatomyositis 