Los tumores neuroectodérmicos primitivos son tumores muy infrecuentes. Derivan de células embrionarias de la cresta neural, y comparten características con los sarcoma de Ewing extraóseos. Se presentan habitualmente en niños y adultos jóvenes, su ubicación más frecuente es en la región toracopulmonar, abdomen y extremidades. Son tumores que presentan una agresividad importante, lo que condiciona un pronóstico sombrío. La ubicación en fosas nasales-cavidades perinasales es anecdótica, existiendo el reporte de tan sólo un caso en la literatura mundial de ubicación en cavidad nasal.
Primitive neuroectodermal tumors are rare malignancies arising from embryonic neural crest cells. They share characteristics with extraosseous Ewing sarcoma. They usually occur in children and young adults and the most common location is the thoracopulmonary region, abdomen and extremities. These tumors have significant aggressiveness, which determines their poor prognosis. The location in nasal fossa-paranasal cavities is anecdotal. Until now only one previous case has been reported in the located in the nasal fossa.
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