What does "Middle and distal thirds" 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.
"Middle and distal thirds" is a way of dividing a long, tubular structure in the body, like a bone, into three equal parts. The "middle third" is the section in the middle, while the "distal third" is the part furthest away from the center of the body. So, if a medical report mentions something happening at the "middle and distal thirds", it means that the event or condition is occurring in the two parts of the structure that are furthest from the body's center.
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