It depends. The word lesion means many different things medically, which is an abnormal change in structure of an organ or part due to injury or disease.
A medical lesion. If it becomes significant it can be life threatening.
Dorsal is the medical term meaning back.
Dorsum is a medical term meaning back. For example the dorsum of the hand is commonly known as the back of the hand.
Dorsal
Posterior.
Posteroanterior means from back to front.
The medical terminology combining form meaning lower back is "lumb/o" or "lumb".
Ankylo- is the medical terminology combining form meaning stiffening. For instance, ankylosis spondylosis is a back condition that results in stiffening of the back.
Lumbarlumbar areaLumbar.
Adenoids
Dorsalgia is the medical term meaning back pain. It is not a frequently used word.
11604, 11603, 11624. Report separately each malignant lesion excised. Report largest lesion first, followed by next largest to smallest.