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a small protrusion of the disk is caused buy pressure on the spine. speaking to the disk itself if there is a weakened spot in the canula the pressure on that disk is more susceptible to give under the spinal pressure, thus causing it to protrude possibly putting pressure directly on the sciatic nerve.
You might need surgery for focal left foraminal disc protrusion that contacts the exiting left L4 nerve root if the protrusion is affecting your quality of life. This type of surgery is most often accomplished via a very small incision.
Foraminal encroachment refers to that degeneration in the spinal column which causes the obstruction of the foramina.
This description likely indicates the presence of a benign spinal cord abnormality at the T8-T9 level, where the spinal cord appears slightly compressed and slightly pushed forward due to a focal protrusion. Further evaluation by a healthcare professional, such as a neurologist or spine specialist, may be necessary to determine the significance and any potential treatment options.
A right paramedian disc protrusion at C5 - C6 that causes focal complete effacement is often referred to as a herniated disc. It can compress nerves and cause tingling and numbness. Your physician will be able to evaluate how serious the condition is and whether it requires treatment.
narthex...
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"Focal" typically refers to something being of central importance or focus. It can also refer to a point where light or sound converges.
It is the point , on the central axis, where light, that is parallel to the central axis, passes thru after it is reflected from the mirror. It is also at a distance from the mirror equal to twice the radius of curvature of the mirror.
A focal character is a character who plays a central role in a narrative or story. They are often the main focus of the plot and their actions, thoughts, and emotions drive the story forward. Focal characters are essential for engaging the audience and creating a connection to the events unfolding in the narrative.
When light strikes a convex lens, the light beam converges to a point called the focal point. This is due to the lens refracting or bending the light rays towards a central point. The distance from the lens to the focal point is called the focal length.