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| | Radiology, University of Rochester Medical Center |
 | | Granulocytic sarcoma (the preferred term, as not all lesions have the greenish tint) occurs primarily in 3-8% of all patients with acute/chronic myelogenous leukemia, but can also arise in patients with other myeloproliferative disorders, such as myelofibrosis with myeloid metaplasia, hypereosinophilic syndrome, polycythemia vera, and acute lymphoblastic leukemia. |
 | | Granulocytic sarcomas may develop during the course of, or as a presenting sign of, myelogenous leukemia. |
 | | It is believed that intracranial granulocytic sarcomas develop by migration of leukemic cells from the bone marrow via haversian canals, periosteum, and the dura to infiltrate the brain, where the pial-glial barrier has been disrupted. |
| www.urmc.rochester.edu /smd/Rad/neurocases/Neurocase79.htm (584 words) |
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