bone marrow, cases Week 381: Case 6 April 26, 2023 pathadmin 1. Presented by Michael Borowitz, M.D., Ph.D.. and prepared by Amy Duffield, M.D., Ph.D.75 year old man with decreased exercise tolerance and fatigue. He had been in excellent health until about a month ago when he felt a little weak and a hematocrit was found to be 32. He rapidly became weaker and presented to the emergency department where he was found to have a Hct 11 of 11, WBC 2000/ul and platelets 113/ul. Marrow was inaspirable.images/Panmyelosis 1E.jpgimages/Panmyelosis 1A.jpgimages/Panmyelosis 1C.jpgimages/Panmyelosis 1B.jpgimages/Panmyelosis 1D.jpgAcute panmyelosis with myelofibrosisPrimary myelofibrosisMyelodysplastic syndrome with fibrosisAcute megakaryocytic leukemia Loading...