"Lucency" is a technical term for an area that lets x-rays through tissue and appears darker on the picture. "Peri-screw lucency" is a result of having had a peri-screw inserted into the bone, possibly due to an accident.
A lucency on an X-ray image represents an area absorbing less radioactive energy than the surrounding tissue. Lucent areas appear dark compared to the surrounding area.
Lucency on medical imaging, such as X-rays, is caused by the passage of X-rays through less dense tissues like air or fluid. This results in those areas appearing darker on the image. Lucency can be seen in conditions like pneumothorax (air in the chest cavity) or pulmonary nodules (small round growth in the lung).
Skull tumor c shaped lucency describes appearance in x-ray.
There is some thinning of the bone in the pelvis.
The comparative form of "subtle" is "subtler" and the superlative form is "subtlest."
Ask again, saying which body part is being imaged.
subtle
Her perfume was so subtle that he could only catch a hint of it when she passed by.
Subchondral lucences are clear-appearing areas under the cartilage.
The opposite of subtle is obvious.
The "b" in subtle is a silent letter. It is not pronounced in standard English pronunciation.