What is lucency meaning?

Lucency refers to a situation where a part of an image appears translucent or transparent, allowing light to pass through. In medical imaging, lucency can be used to describe areas within an x-ray, CT scan, or MRI image where there is a lower level of tissue density, creating a brighter or less opaque appearance. This can sometimes indicate the presence of air, fluid, or other tissue abnormalities. In radiology, lucency can be a useful diagnostic tool for identifying various medical conditions and injuries.