What does "Hypothenar and thenar musculature" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"Hypothenar and thenar musculature" refers to the groups of muscles in the hand. The hypothenar muscles are located on the palm side of the hand at the base of the little finger. The thenar muscles are found on the palm side of the hand at the base of the thumb. When the document mentions "mild fatty replacement of the hypothenar and thenar musculature", it means that some of the muscle tissue in these areas has been replaced with fat.
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