Abstract
A case of a sinonasal undifferentiated carcinoma occurring 2 years after a successfully surgically treated intestinal-type adenocarcinoma has never been reported. Treatment modality of paranasal sinus cancer strictly depends on histology so it is important to recognize a different tumor type in the follow-up of these patients.
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Valentini, V., Giovannetti, F., Cassoni, A. et al. Sinonasal Undifferentiated Carcinoma in a Patient Previously Treated for an Intestinal-Type Adenocarcinoma: Metachronous Neoplasms or Recurrence of a Different Tumor Type?. Indian J Otolaryngol Head Neck Surg 71 (Suppl 3), 1779–1781 (2019). https://doi.org/10.1007/s12070-017-1126-1
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DOI: https://doi.org/10.1007/s12070-017-1126-1