What does "Collaterals from the right ACA" 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.
"Collaterals from the right ACA" refers to additional, secondary blood vessels that come from the right Anterior Cerebral Artery (ACA), which is a major artery in the brain. These collateral vessels can form naturally or develop when the main artery is blocked, to help maintain blood flow to the brain. Essentially, they act as a backup system to ensure the brain continues to receive the necessary blood supply. This term is often used in medical contexts, particularly in relation to conditions like stroke or other cerebrovascular diseases.
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