it’s a specific sound you hear through a stethoscope…
I looked up the definition of a bruit:
an abnormal blowing or swishing sound or murmur heard while auscultating a carotid artery, the aorta, an organ, or a gland, such as the liver or thyroid, and resulting from blood flowing through a narrow or partially occluded artery. The specific character of the bruit, its location, and the time of its occurrence in a cycle of other sounds are all of diagnostic importance. Bruits are usually of low frequency and are heard best with the bell of a stethoscope.
Liver tumors tend be very vascular, so many have bruits.
I remember on my preop imaging report, it said my tumor had “recruited a large blood supply” Dirty bugger.