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Vocal fold fixation in laryngeal carcinomas
M Hirano1, S Kurita, H Matsuoka
1Department of Otolaryngology-Head and Neck Surgery, Kurume University, Japan.
Acta Oto-Laryngologica
|January 1, 1991
Summary
Vocal fold fixation in laryngeal cancer is primarily caused by tumor invasion of the arytenoid eminence or thyroarytenoid muscle. Understanding these mechanisms is crucial for surgical planning and voice preservation strategies.
Area of Science:
- Laryngology
- Oncology
- Surgical Pathology
Background:
- Vocal fold fixation is a significant complication of laryngeal cancer.
- Understanding the anatomical basis of fixation is essential for effective treatment planning.
Purpose of the Study:
- To elucidate the specific mechanisms of vocal fold fixation in both supraglottic and glottic laryngeal carcinomas.
- To correlate tumor invasion patterns with observed vocal fold immobility.
Main Methods:
- Whole-organ serial section analysis of 80 laryngectomy specimens.
- Categorization of specimens into supraglottic (36) and glottic (44) carcinomas.
- Detailed examination of tumor invasion pathways into laryngeal structures.
Main Results:
- For supraglottic cancers, ipsilateral vocal fold fixation frequently resulted from deep arytenoid eminence invasion or thyroarytenoid (TA) muscle involvement.
- Contralateral fixation in supraglottic tumors was linked to deep contralateral arytenoid eminence invasion.
- In glottic cancers, ipsilateral fixation stemmed from TA muscle invasion, while contralateral fixation often involved invasion through the anterior commissure into the contralateral TA muscle.
Conclusions:
- Tumor invasion of the arytenoid eminence and TA muscle are key drivers of vocal fold fixation in laryngeal cancer.
- The anatomical location and extent of tumor invasion dictate the pattern of vocal fold immobility.
- These findings aid in predicting fixation and optimizing surgical approaches for laryngeal malignancies.