Enlargement and increased STIR signal of the median nerve

What does "Enlargement and increased STIR signal of the median nerve" 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.

Explanation

The phrase "Enlargement and increased STIR signal of the median nerve" refers to two observations made during a type of imaging scan. The "median nerve" is a nerve that runs down the arm and into the hand. "Enlargement" simply means that this nerve appears larger than usual. "Increased STIR signal" refers to a specific type of imaging technique used in MRI scans. In this context, it means that the median nerve is showing up as brighter or more intense on the scan. Both of these observations can be associated with various conditions, such as nerve damage or irritation.

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