Introduction Of Bone Marrow Needle Examination

Introduction of bone marrow needle examination

Bone marrow needle examination refers to a clinically commonly used and effective diagnostic examination method. There are two types of bone marrow aspiration and bone marrow biopsy.

Bone marrow puncture is a method of puncturing a small amount of bone marrow fluid with a puncture needle into the bone marrow cavity to make a smear, and then use a microscope to observe and count various types of bone marrow cells to make a disease diagnosis. Bone marrow aspiration can be successfully used in the diagnosis of most patients, but it only obtains bone marrow fluid and does not reflect the bone marrow tissue structure. If you encounter the phenomenon of "dry pumping", that is, when the bone marrow fluid cannot be extracted, the diagnosis cannot be made. This condition is seen in conditions such as bone marrow fibrosis, bone marrow sclerosis, and multiple myeloma. The medical/learning education network collects and organizes the diagnosis of some diseases that require understanding of the bone marrow tissue structure, such as aplastic anemia, myelodysplastic syndrome, malignant tumor bone marrow metastasis, etc., which require bone marrow pathology examination.

Bone marrow biopsy (medullary biopsy) uses a special puncture needle to take a small piece of cylindrical bone marrow tissue about 0.5 to 1 cm long for pathological examination. The method of operation is exactly the same as that of bone marrow puncture, and the material taken out maintains the complete bone marrow tissue structure, which can make up for the lack of bone marrow puncture.

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