Description. A 23 years old female patient presented with headache, vomiting, dizzines, ataxia, amenorrhea and galactorrhea, progressive during the iast 5 years. MRI showed a fourth ventricle tumoral lesion that involved the medulla oblongata with hydrocephalus.
Intervention. First a ventriculo-peritoneal shunting was performed. One week later through a midline approach a microsurgical complete removal was done. Postoperative outcome was good. MRI 6 months later was free of tumor. After one year the neurological examination was normal.
Conclusion. Teratomas of the medulla oblongata are rare lesions. Surgery is the treatment of choice.]]>
2. Youmans, J. Editor. Neurological Surgery 4a. ed, WB Saunders. 1996; Vol 4, cap. 115.

3. Tsuzuki N, Kato H, Ishihara S, Miyazawa T, Nawashuro H, Shima K. Malgnant teratoma of the medulla oblongata in an adult male. Acta Neurochir (Wien) 2001; 143: 1303-4]]> A Propósito de un Caso con Tumor Primario en Médula Cervical y Multicentricidad en la Presentación]]> El diagnóstico se realizó por TAC y IRM y en el 50% de los casos mediante marcadores tumorales (alfafetoproteínas).
Se analizan los resultados del tratamiento que combinó cirugía por distintas vías, radioterapia y quimioterapia.
No hubo mortalidad quirúrgica. Sobreviven 5 pacientes con una sobrevida promedio de 66 meses. La sobrevida promedio de los que fallecieron fue de 19 meses.]]>