Sinonasal Undifferentiated Carcinoma in a Patient Previously Treated for an Intestinal-Type Adenocarcinoma: Metachronous Neoplasms or Recurrence of a Different Tumor Type?

AbstractA 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.
Source: Indian Journal of Otolaryngology and Head and Neck Surgery - Category: ENT & OMF Source Type: research