Korean Journal of Head & Neck Oncology (대한두경부종양학회지)

The Korean Society for Head and Neck Oncology (대한두경부종양학회)
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Nasopharyngeal cancer found after treatment of unknown primary cancer in the head and neck

두경부 원발부위 불명암에서 치료 후 발견된 비인두암

  • Kim, Eun Ji (Department of Otolaryngology-HNS, Research Institute for Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital) ;
  • Hong, Ki Hwan (Department of Otolaryngology-HNS, Research Institute for Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital) ;
  • Hong, Yong Tae (Department of Otolaryngology-HNS, Research Institute for Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital)
  • 김은지 (전북대학교 의과대학 이비인후과학교실) ;
  • 홍기환 (전북대학교 의과대학 이비인후과학교실) ;
  • 홍용태 (전북대학교 의과대학 이비인후과학교실)
  • Received : 2018.05.23
  • Accepted : 2018.10.23
  • Published : 2018.11.30
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Abstract

Despite adequate diagnostic work-up, unknown primary carcinoma(UPC) of the head and neck cannot be detected in approximately 2- 3% of patients.(1,2) There are several explanations for a cervical metastasis in the absence of a primary tumor. Here in, we report 2 patients, who were diagnosed with nasopharyngeal cancer after treatment of unknown primary cancer of the neck. Both patients had radical neck dissections and chemoradiation therapy, but 1 patient showed nasopharyngeal cancers 4 years after treatment and the other patient at 9 months after treatment for the unknown primary cancer. Therefore, we report 2 cases of nasopharyngeal cancer, which were diagnosed after treatment of unknown head and neck primary site.

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References

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