Does anyone know what echo means on a ultrasound?

Question

I was sent for a mammogram and then sent for a ultrasound and they found a new spot and said there was echo around it and to come back in 3 months, to see if there was any changes.

Answer 1

Ultrasounds are actually the reading of digitized echos, like bats use to find objects in the dark. Or like sonar.

An "echo" in an ultrasound reading would be similar to a "shadow" in a photograph, and may mean nothing at all. If they told you to wait 3 months, there is almost definitely nothing to suggest a new cancer, but you can always ask the doc who ordered it to explain further.