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Squamous Cell Carcinoma of Unknown Primary in the Head and Neck

  • John Cuaron
  • Nadeem Riaz
  • Nancy Lee
Chapter
Part of the Medical Radiology book series (MEDRAD)

Abstract

Squamous cell carcinoma of unknown primary (SQCUP) in the head and neck is defined by malignancy in the cervical lymph nodes without identification of the primary tumor after extensive workup. Potential sites of the occult primary tumor include the nasopharynx, oropharynx, larynx, and hypopharynx (Fig. 1). The most common primary sites that are eventually identified upon workup for patients with SQCUP are the tonsils and base of the tongue (~90 %) (2009). The distribution of lymph node metastases from a SQCUP of the head and neck is shown in Fig. 2. The most common sites of involvement are levels II and III.

Keywords

Cervical Lymph Node Unknown Primary IMRT Plan Retropharyngeal Node Target Volume Delineation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Radiation OncologyMemorial Sloan KetteringNew YorkUSA

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