Morphological Evaluation of Thyroid Cartilage Invasion in Early Glottic Tumors Involving the Anterior Commissure

ORL ◽  
2018 ◽  
Vol 80 (5-6) ◽  
pp. 259-270
Author(s):  
Henrique Wendling Sava ◽  
Rogério Aparecido Dedivitis ◽  
Gustavo Rosa Gameiro ◽  
Elio Gilberto Pfuetzenreiter ◽  
Ricardo Camillo de Almeida ◽  
...  
Keyword(s):  
Anterior Commissure ◽  
Thyroid Cartilage ◽  
Morphological Evaluation ◽  
Cartilage Invasion ◽  
Glottic Tumors

Thyroid cartilage invasion in early-stage squamous cell carcinoma involving the anterior commissure

Head & Neck ◽  
2011 ◽  
Vol 34 (10) ◽  
pp. 1476-1479 ◽  
Author(s):  
Dana M. Hartl ◽  
Guillaume Landry ◽  
Stéphane Hans ◽  
Patrick Marandas ◽  
Odile Casiraghi ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Early Stage ◽  
Anterior Commissure ◽  
Thyroid Cartilage ◽  
Cartilage Invasion

Laser Surgery for Vocal Cord Carcinoma Involving the Anterior Commissure

1989 ◽  
Vol 98 (2) ◽  
pp. 105-109 ◽  
Author(s):  
Yosef P. Krespi ◽  
Charles J. Meltzer
Keyword(s):  
Radiation Therapy ◽  
Vocal Cord ◽  
Laser Surgery ◽  
Anterior Commissure ◽  
Thyroid Cartilage ◽  
Increased Risk ◽  
Endoscopic Laser ◽  
Benign Laryngeal Lesions ◽  
Endoscopic Laser Surgery ◽  
Glottic Tumors

Endoscopic laser surgery is an established means of treatment for benign laryngeal lesions. Laser surgery for early (stages I and II) squamous cell carcinoma is still being tested. Treatment of glottic tumors extending to the anterior commissure is in itself controversial. Approximately 20% of all glottic tumors involve the anterior commissure, with only 1% of these lesions being purely anterior commissure tumors. The anatomy of the anterior commissure is such that an apparent T1 lesion may actually be a T4 lesion if it involves the thyroid cartilage. The distance between the anterior commissure ligament and the thyroid cartilage is only 2 to 3 mm. A preoperative computed tomographic scan can aid us in evaluating this space. Therefore, tumors of the anterior commissure present as a therapeutic challenge. Radiation therapy has proven to be inadequate, with a high rate of recurrence and increased risk for radiochondronecrosis. The literature with regard to radiotherapy varies widely as to survival rates. Conservation surgery has consistently demonstrated an 80% survival in T1 lesions. Recently, it has been suggested that laser surgery in the region of the anterior commissure might offer satisfactory results. We have found the opposite. We will report on five patients who underwent endoscopic laser surgery on T1 vocal cord lesions involving the anterior commissure. All of these patients had tumor recurrence and subsequently have undergone salvage surgery and/or radiation therapy. The difficulties associated with endoscopic laser surgery of the anterior commissure will be discussed with a supporting animal study.

The incidence of thyroid cartilage invasion through the anterior commissure in clinically early-staged laryngeal cancer

2015 ◽  
Vol 273 (2) ◽  
pp. 447-453 ◽  
Author(s):  
Murat Ulusan ◽  
Selin Unsaler ◽  
Bora Basaran ◽  
Dilek Yılmazbayhan ◽  
Ismet Aslan
Keyword(s):  
Laryngeal Cancer ◽  
Anterior Commissure ◽  
Thyroid Cartilage ◽  
Cartilage Invasion

An Anatomic Study of the External Laryngeal Framework with Surgical Implications

1992 ◽  
Vol 106 (3) ◽  
pp. 235-240 ◽  
Author(s):  
Lawrence Z. Meiteles ◽  
Pi-Tang Lin ◽  
Eugene J. Wenk
Keyword(s):  
Vocal Fold ◽  
Anterior Commissure ◽  
Thyroid Cartilage ◽  
Oblique Line ◽  
Type I ◽  
Anatomic Study ◽  
True Vocal Cord ◽  
Precise Knowledge ◽  
Human Cadavers ◽  
Superior Border

Precise knowledge of the level of the vocal fold as projected on the external thyroid cartilage is of critical importance for the performance of thyroplasty type I and supraglottic laryngectomy. Measurements of the external laryngeal framework were made on the larynges of 18 human cadavers in order to identify landmarks that will aid the surgeon in determining endolaryngeal anatomy. On the basis of our results, the following guidelines are recommended: (1) Thyroid cartilage incision for supra-glottic laryngectomy should be made on a line joining the juncture of the upper one third and lower two thirds of the midline length and the juncture of the upper one third and lower two thirds of the oblique line. This will ensure a position above the level of the anterior commissure and the true vocal cord; (2) In thyroplasty type I, the superior border of the thyroid cartilage window should be made at a line joining the midpoint of the midline length and the juncture of the upper two thirds and lower one third of the oblique line. Formation of the cartilage window according to this guideline will ensure its placement lateral to the vocalis muscle.

Computerized Axial Tomography in the Assessment of Thyroid Cartilage Invasion by Laryngeal Carcinoma: A Prospective Study

1980 ◽  
Vol 88 (6) ◽  
pp. 726-733 ◽  
Author(s):  
Marshall D. Nathan ◽  
Taher El Gammal ◽  
James H. Hudson
Keyword(s):  
Soft Tissue Tumor ◽  
Thyroid Cartilage ◽  
Human Study ◽  
Study Group ◽  
Axial Tomography ◽  
Cartilage Invasion ◽  
Radiographic Technique ◽  
Carcinoma Of The Larynx ◽  
Computerized Axial Tomography ◽  
A Prospective Study

The purpose of this study was to assess the value of computerized axial tomography (CAT) in canine larynges that exhibit controlled surgical defects, and in 18 patients with biopsy-proved epidermoid carcinoma of the larynx who were studied prospectively. Five canine larynges with sequential surgical defects of 0 mm, 5 mm, 10 mm, and 15 mm were studied by CAT in order to evaluate our ability to identify defects in the thyroid cartilage. A 5-mm collimator with overlapping sections at 3-mm intervals and a 13-mm collimator with 5-mm overlapping sections were both used for each stage of the experiment. Results show significantly improved resolution with the 5-mm collimator compared with the 13-mm unit. In the human study group, results demonstrated excellent (100%) soft-tissue tumor site correlation. It appears from this study that we still lack a highly reliable radiographic technique for evaluating preoperatively with accuracy the integrity of the thyroid cartilage in the patient with carcinoma of the larynx.

CT-scan prediction of thyroid cartilage invasion for early laryngeal squamous cell carcinoma

2012 ◽  
Vol 270 (1) ◽  
pp. 287-291 ◽  
Author(s):  
Dana M. Hartl ◽  
Guillaume Landry ◽  
François Bidault ◽  
Stéphane Hans ◽  
Morbize Julieron ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Ct Scan ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Laryngeal Squamous Cell Carcinoma ◽  
Thyroid Cartilage ◽  
Cartilage Invasion

The incidence of thyroid cartilage invasion in early-stage laryngeal carcinoma: Our experience on sixty-two patients

2017 ◽  
Vol 43 (1) ◽  
pp. 388-392 ◽  
Author(s):  
H.M. Yener ◽  
M. Yilmaz ◽  
A.B. Karaaltın ◽  
H.C. Inan ◽  
F. Turgut ◽  
...  
Keyword(s):  
Laryngeal Carcinoma ◽  
Early Stage ◽  
Thyroid Cartilage ◽  
Cartilage Invasion
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