What it means
On ultrasound, tissues that reflect a lot of sound look bright. Hyperechoic, also written as echogenic, means an area sends back more echoes than its surroundings, so it looks brighter. Calcium, gas and dense fibrous (scar-like) tissue are bright for this reason. Fat mixed through an organ also brightens it, which is why a fatty liver looks whiter than a healthy one.
When it matters
Many hyperechoic findings are harmless. A bright liver most often means fatty liver, which is common and linked to excess weight, diabetes and alcohol. A small bright spot in the liver is often a hemangioma, a harmless tangle of blood vessels. In the thyroid, tiny bright dots inside a nodule are one of the features scored for risk. Blood tests, another scan or follow-up may be suggested.
Questions to ask your doctor
- What is most likely making this area look bright?
- Is it spread through the organ, or one small spot?
- Does it need another test, such as an MRI or blood tests?
