Expansion of Chiari I-associated syringomyelia after posterior-fossa decompression
| Autor: | Sujay Rao, Ziv Gil, Shlomo Constantini |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
medicine.medical_specialty
Ataxia Decompression chemical and pharmacologic phenomena complex mixtures Central nervous system disease medicine Humans Syrinx (medicine) Child Foramen magnum Muscle Weakness business.industry General Medicine Decompression Surgical medicine.disease Spinal cord Magnetic Resonance Imaging Syringomyelia Arnold-Chiari Malformation Surgery medicine.anatomical_structure Cranial Fossa Posterior Pediatrics Perinatology and Child Health Female Neurology (clinical) Neurosurgery medicine.symptom business Intervertebral Disc Displacement |
| Zdroj: | Child's Nervous System. 16:555-558 |
| ISSN: | 1433-0350 0256-7040 |
| DOI: | 10.1007/s003810000329 |
| Popis: | Chiari I malformation (CMI) is an abnormality that involves caudal herniation of the cerebellar tonsils into the foramen magnum. CMI has been shown to be closely associated with the development of syringomyelia (SM). Objects: Several theories have emerged to explain the apparent correlation between the existence of CMI with subsequent development of SM. However, the exact mechanism of the evolution of SM is still subject to controversy. We report here the case of a 12-year-old girl admitted to hospital with headache, vomiting, ataxia, and moderate pyramidal signs. Methods: Radiological evaluation revealed the presence of CMI, accompanied by a small SM. The patient underwent posterior fossa decompression and improved significantly. She was re-admitted 6 months later with clinical evidence of progressive spinal cord dysfunction. MR revealed gross expansion of the syrinx. Conclusions: This case raises questions regarding the pathophysiology of CMI and its association with SM. The case indicates the need for neurological and radiological follow-up for patients undergoing posterior fossa decompression due to CMI, even for those without an initial syrinx. This is the first report known to us of expansion of a syrinx following decompression of an associated CMI. |
| Databáze: | OpenAIRE |
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