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  Contents > Previous page > Article detail print Order
o Issue N# 5 - 2001 o

LARYNGOLOGY

Histology of the larynx.


Authors : H. Kooli, A. Zhioua, S. Zekri, D. Najeh, M. H. Jaafoura, M. Ferjaoui (Tunis)

Ref. : Rev Laryngol Otol Rhinol. 2001;122,5:291-294.

Article published in french
Downloadable PDF document french



Summary : The mucous membrane lining the interior of the larynx was studied in autopsy specimens taken from 21 infant larynxes, with ages ranging from 1 to 15 years. Only those larynxes in which the epithelial mucosal structures were preserved were set aside for study. A standard histological technique was applied. Paraffin sections were stained with haematoxylin-eosin, PAS, Masson's triple stain and orcine. The epithelium of the ventricles, ventricular bands and subglottis was found to be of respiratory type. On the vocal folds, the lining was non-keratinising squamous epithelium. These findings are consistent with those found in the literature. Findings that differed were as follows: the laryngeal surface of the epiglottis is classically described as having a respiratory type of epithelium, whereas we found it to be of non-keratinising stratified squamous type. The literature describes the epithelium of the ventricular bands as respiratory. While in our series we found stratified squamous in 56 % and respiratory in 44 %. Other findings are imprecise in the literature, and need definition; the finding of taste papillae in six cases without age correlation; and the richness of follicles in the lymphoid tissue at the epiglottis and ventricles of children aged more than 3 months.

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