I am not real sure how this is going to go together. It is something that I have been putting off for many, many months for several reasons. First, I am not a medical specialist and I do not want to misinform or misdirect anyone. Secondly, this has not been a very pretty part of my life and I am somewhat hesitant to relive it. But I do suffer from a very life-altering disease and because it is very rare I found it difficult to find information. So here is my somewhat feeble attempt at explaining what has happened to me.

Arnold-Chiari Malformation (ACM), ) is a rare congenital anomaly in which two parts of the brain, the brainstem and the cerebellum, are longer than normal and protrude down into the spinal canal. Chiari malformation may be associated with many other anomalies including myelomeningocele, syringomyelia, and spina bifida. Hydrocephalus (increased intracranial pressure) may also occur. In most cases, symptoms begin during infancy, however onset of symptoms may be delayed until adolescence or adulthood. Symptoms usually include vomiting, muscle weakness in the head and face, difficulty swallowing, and varying degrees of mental impairment. Paralysis of the arms and legs may also occur.

Untreated, the chronic crowding of the brainstem and spinal cord can lead to very serious consequences including paralysis. In addition they can lead to the development of syrinxes which may further injure the patients spinal cord and function.

Syringomyelia (SM) is a disorder in which a cyst forms within the spinal cord. This cyst, called a syrinx, expands and elongates over time, destroying the center of the cord. Since the spinal cord connects the brain to the nerves in the extremities, this damage may result in pain, weakness, and stiffness in the back, shoulders, arms or legs. Other symptoms may include headaches and loss of the ability to feel extremes of hot or cold, especially in the hands and disruption in body temperature. SM may also adversely affect sweating, sexual function and bladder and bowel control.

What causes Syringomyelia?

Trauma to the spinal cord or congenital developmental problems of the brain and/or spinal cord may result in SM
Spinal cord trauma such as a car accident or serious fall may manifest years later as SM.
Congenital developmental problems, sometimes undetectable, may result in syringomyelia.

In either case, the condition may lie dormant and undetected for months or years until a symptom or variety of symptoms become bothersome enough to warrant medical attention. Many people with SM are not diagnosed until mid-life.

A number of medical conditions can cause an obstruction in the normal flow of cerebrospinal fluid (CSF), redirecting it to the spinal cord itself. This results in the formation of a syrinx (cyst that fills with CSF). Pressure differences along the spine cause the fluid to move within the cyst. It is believed that this continual movement of fluid results in cyst growth and further damage to the spinal cord and connecting nerves.