Korean J Radiol.  2009 Feb;10(1):8-11. 10.3348/kjr.2009.10.1.8.

The CT Evaluation of Neoarytenoid Soft Tissue after an Arytenoidectomy during a Supracricoid Partial Laryngectomy

Affiliations
  • 1Department of Otolaryngology-HNS, The Catholic University of Korea, Seoul, Korea.
  • 2Department of Radiology, The Catholic University of Korea, Seoul, Korea. bumrad@catholic.ac.kr

Abstract


OBJECTIVE
To evaluate the postoperative laryngeal CT findings of neoarytenoid soft tissue at an arytenoidectomy site during a supracricoid partial laryngectomy, and to compare its thickness to the mucosa over the spared arytenoid cartilage.
MATERIALS AND METHODS
Thirty-one patients underwent a supracricoid partial laryngectomy with (n = 14) or without (n = 17) an arytenoidectomy. A postoperative laryngeal CT examination was performed to statistically compare the thickness of the neoarytenoid soft tissue to the mucosa over the spared arytenoids.
RESULTS
The neoarytenoid soft tissue revealed an eccentric prominence in all 14 arytenoidectomy sites. Further, the neoarytenoid soft tissue was consistently thicker than the mucosa over spared arytenoids cartilage (p < 0.01), however did not exceed 11 mm.
CONCLUSION
The eccentric prominence of neoarytenoid soft tissue at the arytenoidectomy site during a supracricoid partial laryngectomy should be identified and distinguished from a recurrent mass when compared to spared arytenoid cartilage on a postoperative laryngeal CT.

Keyword

Larynx, CT; Larynx, cancer; Laryngectomy

MeSH Terms

Adult
Aged
Arytenoid Cartilage/*radiography/surgery
Carcinoma, Squamous Cell/surgery
Humans
Laryngeal Neoplasms/surgery
*Laryngectomy/methods
Male
Middle Aged
*Tomography, X-Ray Computed

Figure

  • Fig. 1 Postoperative CT results after supracricoid partial laryngectomy with cricohyoidoepiglotticopexy and right arytenoidectomy. Right neoarytenoid soft tissue (arrows in A and B) is visualized as prominence of eccentric soft tissue, which mimicks mass.

  • Fig. 2 Postoperative CT results after supracricoid partial laryngectomy with cricohyoidoepiglotticopexy and both of spared arytenoid cartilages. Thickened mucosa covering arytenoid (arrows in B) is detected at level of hyoid bone where it appears in close contact.

  • Fig. 3 Postoperative CT results after supracricoid partial laryngectomy with cricohyoidopexy and both of spared arytenoid cartilages. CT reveals minimal thickening of mucosa (arrows in A and B) covering arytenoid.


Reference

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