Nasopharyngeal carcinoma: relationship between invasion of the prevertebral space and distant metastases.
Qi-Yong Hemis AiChen-Wen HuKunwar S BhatiaDarren M C PoonEdwin P HuiFrankie K F MoBenjamin King Hong LawMacy TongBrigette B MaAnthony T C ChanAnn D KingPublished in: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery (2017)
PVS was the only site of primary tumour invasion that independently correlated with DM, and together with PPFS + was an independent prognostic marker of FEN+, but the low specificity and accuracy of PVS invasion limits its use as a prognostic marker of DM.