syrinx
Pronunciation: SEER-inks
A fluid-filled cavity within the spinal cord, also known as syringomyelia when causing symptoms.
Full Definition
A syrinx is a cystic cavity filled with cerebrospinal fluid that develops within the substance of the spinal cord. The condition is called syringomyelia when the syrinx causes neurological symptoms. Syrinxes can be associated with various conditions including Chiari malformation, spinal cord trauma, tumors, or may be idiopathic. The expanding fluid collection can damage neural tissue, leading to progressive weakness, sensory loss, and pain. Treatment depends on the underlying cause and may involve surgical decompression, shunting procedures, or addressing associated pathology such as Chiari malformation.
Usage
Usage note: Syrinx is the cavity itself; syringomyelia refers to the symptomatic condition; specify extent and associated pathology.
In Context
- "MRI demonstrated a holocord syrinx extending from C2 to the conus medullaris." — radiology report
- "The patient developed a post-traumatic syrinx five years following spinal cord injury." — neurology consultation note