Final answer:
Liposuction is the cosmetic procedure that involves the removal of fatty tissue with a vacuum device.
Step-by-step explanation:
The cosmetic procedure that involves the removal of fatty tissue with a vacuum device is liposuction. Liposuction is a surgical procedure in which a thin cannula is inserted into the targeted area and used to suction out excess fat cells. This procedure is commonly performed to contour and reshape areas such as the abdomen, thighs, hips, and arms.
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