Bone Marrow Aspiration Biopsy Using A Bone Marrow Puncture Needle

Bone marrow aspirations and biopsies are performed to examine bone marrow, the spongy liquid part of the bone where blood cells are made.

In a bone marrow aspiration, a small amount of liquid marrow is taken from inside the bone so the cells can be examined under a microscope.

In a bone marrow biopsy, a small piece of intact bone marrow is removed so the structure of the bone marrow inside its bony framework can be examined.

Occasionally, only an aspiration is needed; other times, both tests are done.

The aspiration and biopsy are done by a trained medical practitioner (nurse or doctor) using a small needle inserted into a bone. Usually the back of the hipbone (iliac crest) is used.

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