Bone marrow biopsy in aplastic anemia. There are virtually no hematopoietic cells, and the marrow space consists of fat and stroma.
Courtesy of Stanley L Schrier, MD.
Graphic 63867 Version 2.0
Normal bone marrow biopsy at low power
Low power view of a normal bone marrow biopsy. The overall cellularity is between 30 and 70 percent, with the remainder of the space being occupied by fat and stroma.