Morphological aspects of the euphonic voice

Bożena Kosztyła-Hojna; Anna Andrzejewska; Diana Moskal; Marek Rogowski; Dawid Falkowski; Joanna Kasperuk

doi:10.5603/FHC.2011.0011

Vol 49, No 1 (2011)

Original paper

Submitted: 2011-12-19

Published online: 2011-04-19

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Morphological aspects of the euphonic voice

Bożena Kosztyła-Hojna, Anna Andrzejewska, Diana Moskal, Marek Rogowski, Dawid Falkowski, Joanna Kasperuk

DOI: 10.5603/FHC.2011.0011

Folia Histochem Cytobiol 2011;49(1):72-79.

Vol 49, No 1 (2011)

ORIGINAL PAPERS

Submitted: 2011-12-19

Published online: 2011-04-19

Abstract

The high quality of a euphonic voice is the result of complex interactions between many organs and systems. Vibrating vocal folds play a crucial role in this process. Their physiological motion is conditioned by the presence of the layered structure of laryngeal mucosa. In this study, we assessed the degree of dysphonia according to the Union of European Phoniatrics (UEP) scale. Videoendoscopy (VLS) and videostroboscopic (VLSS) examination of the larynx was used to visualize the vibration of the vocal folds. Morphological assessment of the inter-membranous part of the vocal fold mucosa was carried out using material collected after surgical treatment (60%) or obtained from autopsy (40%). The samples were examined by light microscopy and transmission electron microscopy. In euphonic voices, 1° of dysphonia (UEP) and the physiological endoscopic (VLS) and stroboscopic (VLSS) findings of vocal folds were registered. No morphological or ultramorphological changes were observed in the cells of the multilayered flat epithelium, basal membrane or in the stroma. Unchanged epithelial cells were situated on the basal membrane with folds. Moreover, numerous pericytes, vessels with multiplication of basal membranes, scanty collagenous fibers, plasmatic cells and lymphocytes were seen. Morphological changes with signs of atrophy and polypoid degeneration of the vocal fold mucosa were found in only 3 (15%) patients. (Folia Histochemica et Cytobiologica 2011; Vol. 49, No. 1, pp. 72–79)

Abstract

The high quality of a euphonic voice is the result of complex interactions between many organs and systems. Vibrating vocal folds play a crucial role in this process. Their physiological motion is conditioned by the presence of the layered structure of laryngeal mucosa. In this study, we assessed the degree of dysphonia according to the Union of European Phoniatrics (UEP) scale. Videoendoscopy (VLS) and videostroboscopic (VLSS) examination of the larynx was used to visualize the vibration of the vocal folds. Morphological assessment of the inter-membranous part of the vocal fold mucosa was carried out using material collected after surgical treatment (60%) or obtained from autopsy (40%). The samples were examined by light microscopy and transmission electron microscopy. In euphonic voices, 1° of dysphonia (UEP) and the physiological endoscopic (VLS) and stroboscopic (VLSS) findings of vocal folds were registered. No morphological or ultramorphological changes were observed in the cells of the multilayered flat epithelium, basal membrane or in the stroma. Unchanged epithelial cells were situated on the basal membrane with folds. Moreover, numerous pericytes, vessels with multiplication of basal membranes, scanty collagenous fibers, plasmatic cells and lymphocytes were seen. Morphological changes with signs of atrophy and polypoid degeneration of the vocal fold mucosa were found in only 3 (15%) patients. (Folia Histochemica et Cytobiologica 2011; Vol. 49, No. 1, pp. 72–79)

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Keywords

larynx; epithelial cells; pericytes; lamina propria; videolaryngostroboscopy; phonation; voice quality; polypoid degeneration

About this article

Title

Morphological aspects of the euphonic voice

Journal

Folia Histochemica et Cytobiologica

Issue

Vol 49, No 1 (2011)

Article type

Original paper

Pages

72-79

Published online

2011-04-19

Page views

1807

Article views/downloads

1993

DOI

10.5603/FHC.2011.0011

Bibliographic record

Folia Histochem Cytobiol 2011;49(1):72-79.

Keywords

larynx
epithelial cells
pericytes
lamina propria
videolaryngostroboscopy
phonation
voice quality
polypoid degeneration

Authors

Bożena Kosztyła-Hojna
Anna Andrzejewska
Diana Moskal
Marek Rogowski
Dawid Falkowski
Joanna Kasperuk