Journal Information
Vol. 25. Issue 1.
Pages 25-28 (January - February 2014)
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Vol. 25. Issue 1.
Pages 25-28 (January - February 2014)
Caso clínico
Pseudotumor retroodontoideo en un paciente con hiperostosis esquelética idiopática difusa
Retro-odontoid pseudotumor in diffuse idiopathic skeletal hyperostosis
Julián Castro-Castro
Corresponding author
juliancastrocastro@yahoo.es

Autor para correspondencia.
, Daniel Castro-Bouzas, Alfonso Pinzón-Millán, Ana Pastor-Zapata
Servicio de Neurocirugía, Complexo Hospitalario Universitario de Ourense, Ourense, España
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Resumen

El pseudotumor retroodontoideo es una lesión provocada por granulación inflamatoria o por hipertrofia de partes blandas asociado a inestabilidad atloaxoidea crónica. Sin embargo, cerca de un tercio de los casos recogidos en la literatura no demostraron claramente esta inestabilidad.

Los autores exponen el caso de un hombre de 76años, previamente diagnosticado de hiperostosis esquelética idiopática difusa, que presenta un cuadro de mielopatía severa progresiva. Las imágenes de resonancia magnética de la columna cervical mostraron una masa predural retroodontoidea con compresión marcada del cordón medular. Se realizó laminectomía del atlas y fusión occipitocervical Tras la cirugía el paciente mejoró significativamente y se redujo el tamaño del pseudotumor.

Palabras clave:
Hiperostosis esquelética idiopática difusa
Pseudotumor retroodontoideo
Mielopatía
Fijación occipitocervical
Abstract

Retro-odontoid pseudotumors are lesions caused by inflammatory granulation or reactive soft tissue hypertrophy from chronic atlantoaxial subluxation. However, one-third of the cases reported in the medical literature did not show atlantoaxial instability clearly.

The authors present the case of a 76-year-old man previously diagnosed with diffuse idiopathic skeletal hyperostosis who presented with severe progressive myelopathy. A magnetic resonance imaging of his cervical spine revealed a retro-odontoid predural mass, which caused a severe compression of the cervical spinal cord. The patient underwent a posterior laminectomy of the atlas and an occipitocervical fusion. After surgery, the pseudotumor was considerably smaller and the neurological symptoms improved.

Keywords:
Diffuse idiopathic skeletal hyperostosis
Retro-odontoid pseudotumor
Myelopathy
Occipito-cervical fusion

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