title: [Spinal osteochondroma: diagnostic imaging and treatment. Case reports].
abstract: BACKGROUND
  Osteochondromas are benign bony tumours, with only 1 to 4% being located in the spine. It occurs more frequently in the cervical spine, with C2 being the vertebra most affected. The neurological presentation is slow due to the growth characteristics of the tumour. Computed axial tomography is the reference method for diagnosis. Surgical management is indicated for patients with neurological impairment or pain.
  
  
  METHODS
  The first case presents a 21-year-old male with osteochondroma located in the spinous processes of L2, L3 and L4. The second case is a 20-year-old female with multiple osteochondromatosis with tumours at the right lateral mass of C1, with extension to C2 and tumours on the spinous processes of C5 and C7. Both patients presented with painful symptoms, which were resolved after surgical resection of the tumours.
  
  
  CONCLUSIONS
  The rarity of these conditions, relevance of a clinical-radiographic diagnosis, and considerations required for surgical treatment are discussed here.
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, México, D.F., México.
authors.forename: Carla Lisette
authors.initials: CL
authors.lastname: García-Ramos
authors.affiliation: División de Ortopedia, Instituto Nacional de Rehabilitación, México, D.F., México.
authors.forename: Martín
authors.initials: M
authors.lastname: Buganza-Tepole
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, México, D.F., México.
authors.forename: Claudia Alejandra
authors.initials: CA
authors.lastname: Obil-Chavarría
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, México, D.F., México. Electronic address: alereyes@inr.gob.mx.
authors.forename: Alejandro Antonio
authors.initials: AA
authors.lastname: Reyes-Sánchez
mesh_terms: D002574:Cervical Vertebrae; D005097:Exostoses, Multiple Hereditary / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D017116:Low Back Pain / Q000209:etiology; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D019547:Neck Pain / Q000209:etiology; D015831:Osteochondroma / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery*; D010292:Paresthesia / Q000209:etiology; D013125:Spinal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D055815:Young Adult
keywords: Exostosis; Osteochondroma; Osteochondroma hereditary multiple; Osteocondroma; Osteocondromatosis múltiple hereditaria; Solitario; Solitary; Spinal Tumour; Tumor espinal