Bone marrow aspiration removes a small amount of bone marrow fluid through a needle put into a bone. Bone marrow biopsy removes a small amount of bone along with bone marrow fluid.
For this procedure, the person usually lies on his or her side.
Last Revised: November 12, 2010
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & Brian Leber, MDCM, FRCPC - Hematology
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