title: [Retro-odontoid pseudotumor in diffuse idiopathic skeletal hyperostosis].
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.
authors: Servicio de Neurocirugía, Complexo Hospitalario Universitario de Ourense, Ourense, España. Electronic address: juliancastrocastro@yahoo.es.
authors: Julián
authors: J
authors: Castro-Castro
authors: Servicio de Neurocirugía, Complexo Hospitalario Universitario de Ourense, Ourense, España.
authors: Daniel
authors: D
authors: Castro-Bouzas
authors: Servicio de Neurocirugía, Complexo Hospitalario Universitario de Ourense, Ourense, España.
authors: Alfonso
authors: A
authors: Pinzón-Millán
authors: Servicio de Neurocirugía, Complexo Hospitalario Universitario de Ourense, Ourense, España.
authors: Ana
authors: A
authors: Pastor-Zapata
mesh_terms: D000368:Aged; D001270:Cervical Atlas / Q000601:surgery*; D018450:Disease Progression; D006104:Granuloma, Plasma Cell / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D006801:Humans; D004057:Hyperostosis, Diffuse Idiopathic Skeletal / Q000150:complications*; D007796:Laminectomy; D008279:Magnetic Resonance Imaging; D008297:Male; D009128:Muscle Spasticity; D009809:Odontoid Process; D011782:Quadriplegia / Q000209:etiology / Q000534:rehabilitation; D012021:Reflex, Abnormal; D013117:Spinal Cord Compression / Q000209:etiology*; D013123:Spinal Fusion
keywords: Diffuse idiopathic skeletal hyperostosis; Fijación occipitocervical; Hiperostosis esquelética idiopática difusa; Mielopatía; Myelopathy; Occipito-cervical fusion; Pseudotumor retroodontoideo; Retro-odontoid pseudotumor