Vacuum-Assisted Biopsy (VAB) for Small Lesions
VAB is an advanced version of the core biopsy that uses a vacuum device to "pull" tissue into the needle.
Single Insertion: Unlike a standard core needle, which must be removed and re-inserted for each sample, the VAB needle stays in place. The vacuum pulls tissue into a sampling notch, and a rotating cutter removes multiple samples in seconds.
Total Removal: For very small lesions (under 5mm), a VAB may occasionally remove the entire suspicious area.
Efficiency: This method is preferred for MRI-guided biopsies and for lesions that require extensive sampling to rule out atypical cells.
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