New barriers to ventricular invasion in paraglottic laryngeal cancer

Jonathan J. Beitler, Panna S. Mahadevia, Carl E. Silver, Scott Wadler, John S. Rubin, Jacqueline A. Bello, Robin J. Mitnick, Bhadrasain Vikram

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Background. Anatomic barriers to the spread of laryngeal cancer include the conus elasticus, the quadrangular membrane, and the thyroid cartilage. It has been speculated that an elastic barrier surrounds and protects the ventricle. Methods. The authors studied the microanatomic patterns of spread of 17 cases of patients who had laryngeal cancer with paraglottic disease and confirmed their findings by examining normal autopsy specimens. Results. Five patients of the seventeen cases showed no ventricular mucosal involvement despite extensive paraglottic disease. Both an inner, central, subepithelial periventricular elastic barrier, and a more peripheral periventricular elastic membrane barrier were identified; the latter was in continuity with the conus elasticus and quadrangular membrane. Conclusions. Two weak fibroelastic barriers surround the ventricle. The outer, peripheral, fibroelastic membrane is contiguous with the conus elasticus and the quadrangular membrane. Therefore, ventricular involvement is not a sensitive indicator of paraglottic spread. Squamous cell cancer may grow around the periventricular barriers to involve both the true and false cords but may spare the ventricle. The prognostic significance of the violation or preservation of the periventricular elastic barriers is unknown.

Original languageEnglish (US)
Pages (from-to)2648-2652
Number of pages5
JournalCancer
Volume73
Issue number10
DOIs
StatePublished - May 15 1994

Keywords

  • conus elasticus
  • paraglottic larynx cancer
  • quadrangular membrane
  • squamous cell cancer of larynx; larynx‐microanatomy
  • transglottic cancer

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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  • Cite this

    Beitler, J. J., Mahadevia, P. S., Silver, C. E., Wadler, S., Rubin, J. S., Bello, J. A., Mitnick, R. J., & Vikram, B. (1994). New barriers to ventricular invasion in paraglottic laryngeal cancer. Cancer, 73(10), 2648-2652. https://doi.org/10.1002/1097-0142(19940515)73:10<2648::AID-CNCR2820731029>3.0.CO;2-D