Ho Kyu Lee MD, Presenter: Nothing to Disclose

Wendy R.K. Smoker MD, Abstract Co-Author: Nothing to Disclose

Amr Mourad, Abstract Co-Author: Nothing to Disclose

Toshio Moritani MD, PhD, Abstract Co-Author: Nothing to Disclose

Joan Elizabeth Maley MD, Abstract Co-Author: Nothing to Disclose

Yutaka Sato MD, Abstract Co-Author: Nothing to Disclose

1.Understand the anatomy of the pre-epiglottic and paraglottic spaces. 2.Recognize the variety of pathologies that affect the pre-epiglottic and paraglottic spaces.

The pre-epiglottic space (PES) is a midline, horseshoe-shaped, fat-containing space and the paraglottic spaces (PGS) are paired, peri-epiglottic spaces. Glottic carcinomas typically spread to involve the PES and PGS. Occasionally, other pathologies can superficially or deeply involve these spaces. Pathologies are broadly categorized as follows: i) mucosal lesions-laryngeal or pyriform sinus carcinoma; ii) submucosal lesions-schwannoma, hemangioma, minor salivary gland neoplasm; iii) cartilaginous or adjacent tissue lesions-chondroma, chondrosarcoma, rheumatoid arthritis, thyroglossal duct cyst; iv) laryngeal saccular lesions-laryngocele; v) diffuse lesions- laryngopharyngitis, laryngeal edema, tuberculosis, lymphoma, etc. The purpose of this exhibit is to review the anatomy of the PES and PGS on CT and MR imaging. In addition, a wide spectrum of pathology affecting these spaces is illustrated and discussed.

Lee, H, Smoker, W, Mourad, A, Moritani, T, Maley, J, Sato, Y, Pre-epiglottic and Paraglottic Spaces: Anatomical Considerations and Disease Spectrum.  Radiological Society of North America 2005 Scientific Assembly and Annual Meeting, November 27 - December 2, 2005 ,Chicago IL. http://archive.rsna.org/2005/4414961.html