syringomyelia

The presence in the spinal cord of longitudinal cavities lined by dense, gliogenous tissue, which are not caused by vascular insufficiency. S. is marked clinically by pain and paresthesia, followed by muscular atrophy of the hands and analgesia with thermoanesthesia of the hands and arms, but with the tactile sense preserved; later marked by painless whitlows, spastic paralysis in the lower extremities, and scoliosis of the lumbar spine. Some cases are associated with low grade astrocytomas or vascular malformations of the spinal cord. SYN: hydrosyringomyelia, Morvan disease, syringomyelus. [syringo- + G. myelos, marrow]

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sy·rin·go·my·elia sə-.riŋ-gō-mī-'ē-lē-ə n a chronic progressive disease of the spinal cord associated with sensory disturbances, muscle atrophy, and spasticity
sy·rin·go·my·el·ic -'el-ik adj

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n.
a disease of the spinal cord in which longitudinal cavities form within the cord in the cervical (neck) region. The centrally situated cavity (syrinx) is especially likely to damage the motor nerve cells and the nerve fibres that transmit the sensations of pain and temperature. Characteristically there is weakness and wasting of the muscles in the hands with a loss of awareness of pain and temperature. An extension of the cavitation into the lower brainstem is called syringobulbia. Cerebellar ataxia, a partial loss of pain sensation in the face, and weakness of the tongue and palate may occur. Syringomyelia is sometimes associated with an Arnold-Chiari malformation.

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sy·rin·go·my·elia (sĭ-ring″go-mi-eґle-ə) [syringo- + myel- + -ia] a slowly progressive syndrome of cavitation in the central segments of the spinal cord, generally in the cervical region, but sometimes extending up into the medulla oblongata (syringobulbia) or down into the thoracic region; it may be of developmental origin, arise secondary to tumor, trauma, infarction, or hemorrhage, or be of unknown cause. It results in neurologic deficits, usually segmental muscular weakness and atrophy with a dissociated sensory loss (loss of pain and temperature sensation, with preservation of the sense of touch), and thoracic scoliosis is often present. Sometimes the use of the term syringomyelia is restricted to this condition, with the terms segmental sensory dissociation with brachial muscular atrophy and syndrome of sensory dissociation with brachial amyotrophy being used for a similar condition that may be associated with other pathological lesions or states. Called also cavitary myelitis, hydrosyringomyelia, Morvan syndrome, syringomyelic syndrome, and syringomyelus. See also Morvan syndrome (def. 2).

Medical dictionary. 2011.

Look at other dictionaries:

  • Syringomyelia — Classification and external resources An idiopathic syrinx. See the thin light grey shape inside the spinal cord, placed at centre in the bottom half of the above image. ICD 10 G …   Wikipedia

  • syringomyelia — [sə riŋ΄gō mī ē′lē ə] n. [ModL < Gr syrinx (see SYRINGE) + myelos, marrow] a chronic, progressive disease of the spinal cord, characterized by the formation of cavities filled with liquid within the spinal cord …   English World dictionary

  • syringomyelia — syringomyelic /seuh ring goh muy el ik/, adj. /seuh ring goh muy ee lee euh/, n. Pathol. a disease of the spinal cord in which the nerve tissue is replaced by a cavity filled with fluid. [1875 80; syringo (comb. form of Gk syrinx SYRINX) + myelia …   Universalium

  • syringomyelia — n. a disease of the spinal cord in which longitudinal cavities form within the cord, usually in the cervical (neck) region. The centrally situated cavity (syrinx) is especially likely to damage the motor nerve cells and the nerve fibres that… …   The new mediacal dictionary

  • syringomyelia — noun Etymology: New Latin, from Greek syring , syrinx tube, fistula + New Latin myel + ia Date: 1880 a chronic progressive disease of the spinal cord associated with sensory disturbances, muscle atrophy, and spasticity • syringomyelic adjective …   New Collegiate Dictionary

  • Syringomyelia — Syringomyélie La syringomyélie est une maladie de la moelle épinière liée au développement d une cavité en son centre qui tend à comprimer et à détruire progressivement la substance grise puis la substance blanche. Sommaire 1 Physiopathologie 2… …   Wikipédia en Français

  • syringomyelia — noun A disorder in which a cyst or cavity forms within the spinal cord, possibly leading to stiffness or paralysis. See Also: syrinx …   Wiktionary

  • syringomyelia — n. (Medicine) chronic progressive disease characterized by the formation of fluid filled cavities in the spinal cord (causes motor and sensory disturbances, and paralysis) …   English contemporary dictionary

  • syringomyelia — sy·rin·go·my·e·lia …   English syllables

  • syringomyelia — sy•rin•go•my•e•li•a [[t]səˌrɪŋ goʊ maɪˈi li ə[/t]] n. pat a disease of the spinal cord in which the nerve tissue is replaced by a fluid filled cavity • Etymology: 1875–80; syringo (comb. form of Gk sŷrinx syrinx) +myelia (see myelo , ia) sy•rin… …   From formal English to slang

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