What does "No evidence of external migration" 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.
"No evidence of external migration" in a medical context means that there are no signs that something inside the body, such as a medical device or a disease, has moved to a different location outside its original place. For example, if a doctor inserts a device into a patient's body, they would check to make sure it stays where it's supposed to. If it doesn't move, they would say there is "no evidence of external migration." This term can also refer to diseases or conditions that have not spread to other parts of the body.
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