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Muscle biopsy
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In , a muscle biopsy is a procedure in which a piece of tissue is removed from an and examined . A muscle biopsy can lead to the discovery of problems with the , connective tissue, , or musculoskeletal system.


Indications
In humans with weakness and low muscle tone, a muscle biopsy can help distinguish between (where the pathology is in the muscle tissue itself) and (where the pathology is at the nerves innervating those muscles). Muscle biopsies can also help to distinguish among various types of , by microscopic analysis for differing characteristics when exposed to a variety of chemical reactions and stains.
(2025). 9780444640765

However, in some cases the muscle biopsy alone is inadequate to distinguish between certain myopathies. For example, a muscle biopsy showing the nucleus pathologically located in the center of the muscle cell would indicate "centronuclear myopathy", but research has shown that a variety of can cause these centronuclear biopsy appearance, and hence the specific becomes increasingly important. Additionally muscle biopsy is the only certain way to clarify ones muscle fiber types. I.e. by undergoing a muscle biopsy one can get a clear picture of which type of muscles dominates his/her body.


Procedure
A biopsy needle is usually inserted into a muscle, wherein a small amount of tissue remains. Alternatively, an "open biopsy" can be performed by obtaining the muscle tissue through a small surgical incision.


See also


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