CC BY-NC-ND 4.0 · Rev Bras Ortop (Sao Paulo) 2021; 56(01): 114-117
DOI: 10.1055/s-0040-1714225
Relato de Caso
Coluna

Posttraumatic Arachnoid Cyst in the Thoracic Spine with Medullary Compression: Case Report

Article in several languages: português | English
1   Grupo de Coluna Vertebral, Departamento de Ortopedia e Traumatologia “Pavilhão Fernandinho Simonsen”, Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brasil
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2   Departamento de Ortopedia e Traumatologia, Hospital Israelita Albert Einstein, São Paulo, SP, Brasil
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2   Departamento de Ortopedia e Traumatologia, Hospital Israelita Albert Einstein, São Paulo, SP, Brasil
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2   Departamento de Ortopedia e Traumatologia, Hospital Israelita Albert Einstein, São Paulo, SP, Brasil
,
2   Departamento de Ortopedia e Traumatologia, Hospital Israelita Albert Einstein, São Paulo, SP, Brasil
,
1   Grupo de Coluna Vertebral, Departamento de Ortopedia e Traumatologia “Pavilhão Fernandinho Simonsen”, Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brasil
2   Departamento de Ortopedia e Traumatologia, Hospital Israelita Albert Einstein, São Paulo, SP, Brasil
› Author Affiliations

Abstract

Arachnoid cysts are rare; they can occur at all levels of the dural sac, and can have a congenital, traumatic, iatrogenic or inflammatory origin. In the present article, we report a patient presenting a compressive thoracic myelopathy due to an unusual intradural arachnoid cyst with posttraumatic manifestation and its resolution, in addition to a literature review on the subject. These cysts mainly occur at the thoracic spine, followed by the lumbar, lumbosacral and thoracolumbar spines. Traumatic cysts are caused by an injury to the inner dural layer. These lesions produce neurological deficits through a mass effect on the spinal cord. Concomitant compressive myelopathy is even rarer. In case of myelopathy, cyst resection or drainage is the treatment of choice, and it must be performed immediately. Although rare, arachnoid cysts can be a complication of spine fractures; as such, orthopedists and neurosurgeons, who commonly see these injuries, must be prepared for this unusual situation.



Publication History

Received: 29 September 2019

Accepted: 05 May 2020

Article published online:
30 September 2020

© 2020. Sociedade Brasileira de Ortopedia e Traumatologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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