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Bone marrow biopsy

Biopsy - bone marrow

A bone marrow biopsy is the removal of marrow from inside bone. Bone marrow is the soft tissue inside bones that helps form blood cells. It is found in the hollow part of most bones.

Bone marrow biopsy is not the same as bone marrow aspiration. An aspiration removes a small amount of marrow in liquid form for examination.

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Bone marrow aspiration
Bone biopsy

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How the Test is Performed

A bone marrow biopsy may be done in the health care provider's office or in a hospital. The sample may be taken from the pelvic or breast bone. Sometimes, another area is used.

Marrow is removed in the following steps:

A bone marrow aspiration may also be done, usually before the biopsy is taken. After the skin is numbed, the needle is inserted into the bone, and a syringe is used to withdraw the liquid bone marrow. If this is done, the needle will be removed and repositioned. Or, another needle may be used for the biopsy.

How to Prepare for the Test

Tell the provider:

How the Test will Feel

You will feel a sharp sting when the numbing medicine is injected. The biopsy needle may also cause a brief, usually dull, pain. Since the inside of the bone cannot be numbed, this test may cause some discomfort.

If a bone marrow aspiration is also done, you may feel a brief, sharp pain as the bone marrow liquid is removed.

Why the Test is Performed

Your provider may order this test if you have abnormal types or numbers of red or white blood cells or platelets on a complete blood count (CBC).

This test is used to diagnose leukemia, infections, some types of anemia, and other blood disorders. It may also be used to help determine if a cancer has spread or responded to treatment.

Normal Results

A normal result means the bone marrow contains the proper number and types of blood-forming (hematopoietic) cells, fat cells, and connective tissues.

What Abnormal Results Mean

Abnormal results may be due to cancers of the bone marrow (leukemia, lymphoma, multiple myeloma, or other cancers).

The results may detect the cause of anemia (too few red blood cells), abnormal white blood cells, or thrombocytopenia (too few platelets).

Specific conditions for which the test may be performed:

Risks

There may be some bleeding at the puncture site. More serious risks, such as serious bleeding or infection, are very rare.

Related Information

Platelet count
Biopsy
CBC blood test
Anemia
Cancer
Hodgkin lymphoma
Thrombocytopenia
Hairy cell leukemia
Aplastic anemia
Multiple myeloma
Neuroblastoma
Non-Hodgkin lymphoma
Polycythemia vera
Primary amyloidosis
Myelofibrosis
Secondary systemic amyloidosis

References

Chernecky CC, Berger BJ. Bone marrow aspiration analysis-specimen (biopsy, bone marrow iron stain, iron stain, bone marrow). In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures. 6th ed. Philadelphia, PA: Elsevier Saunders; 2013:241-244.

Vajpayee N, Graham SS, Bem S. Basic examination of blood and bone marrow. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 30.

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Review Date: 4/2/2018  

Reviewed By: Richard LoCicero, MD, private practice specializing in hematology and medical oncology, Longstreet Cancer Center, Gainesville, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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