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All forms involve the pulling of the spinal cord at the base of the spinal canal, literally a tethered cord. [1] The spinal cord normally hangs loose in the canal, free to move up and down with growth, and with bending and stretching. A tethered cord, however, is held taut at the end or at some point in the spinal canal.
The most common causes of cord compression are tumors, but abscesses and granulomas (e.g. in tuberculosis) are equally capable of producing the syndrome. Tumors that commonly cause cord compression are lung cancer (non-small cell type), breast cancer, prostate cancer, renal cell carcinoma, thyroid cancer, lymphoma and multiple myeloma.
Because myelomalacia involves a damaged spinal cord, it may occur in any individual. Those most at risk are the geriatric population due to weaker bone density. Once the spinal injury has occurred, one of two things may happen. Firstly, hemorrhaging within the spinal cord may cause compression, which damages the spinal cord even further.
large, long Greek μᾰκρός (makrós), long, tall macrophage-malacia: softening Greek μαλακία (malakía), soft, weak, self-indulgent osteomalacia: mamm(o)-of or pertaining to the breast: Latin mamma, breast, udder mammogram: mammill(o)-of or pertaining to the nipple: Latin mammilla, nipple mammillaplasty, mammillitis: manu-of or ...
Subacute combined degeneration of spinal cord, also known as myelosis funiculus, or funicular myelosis, [1] also Lichtheim's disease, [2] [3] and Putnam-Dana syndrome, [4] refers to degeneration of the posterior and lateral columns of the spinal cord as a result of vitamin B 12 deficiency (most common).
A teen severed his spinal cord — and may never regain the use of his hands or feet — while trying to leap into a swimming pool to avoid a wasp, according to his family.. SJ Williams, 13, was ...
"Ventral" in the central nervous system also refers to the rostro-caudal axis, which changes within the head. These three axes of the human brain match the three planes within which they lie, even though the terms for the planes have not been changed from the terms for the bodily planes. The most commonly used reference planes are:
The injured spinal cord is an “altered” spinal cord. After a SCI, supraspinal and spinal sources of control of movement differ substantially from that which existed prior to the injury, [20] thus resulting in an altered spinal cord. The automaticity of posture and locomotion emerge from the interactions between peripheral nervous system ...