Abstract
The epipharynx lies between the nasal cavity and oropharynx. The mucosa of the epithelium in the human epipharynx is composed of ciliated epithelium as part of the respiratory tract, squamous epithelium as representative of the digestive system and transitional epithelium. Previous studies by Ali have shown that transitional epithelium is present in a boundary line between the epipharynx and oropharynx, with numerous islets of the epithelium also located in the lateral and dorsal walls accompanied with a patchy distribution of the ciliated and squamous epithelium. Mechanical irritation caused by the anatomical properties of the epipharynx is thought to be responsible for the morphological findings present. We studied the distribution of the three different types of epithelia in the epipharynx in ten autopsy cases. Our data revealed that they showed mosaic or an “island-like” distribution on the epipharyngeal wall and their patterns of distribution were variable in each individual.
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References
Ali MY (1965) Histology of the human nasopharyngeal mucosa. J Anat 99: 657–672
Bryant WS (1916) The transition of the ciliated epithelium of the nose into the squamous epithelium of the pharynx. J Anat 50: 172–176
Cheung WWY (1993) Latent sites of Epstein-Baff virus infection. Am J Clin Pathol 100: 502–506
Kanagasuntherram R (1968) Development of the human nasopharyngeal epithelium. Acta Anat 70: 1–13
Nakano T (1986) Ultrastructural studies of the transitional zone in the nasopharyngeal epithelium, with special reference to the keratinizing process in the mouse. Acta Anat 127: 22–47
Sixbey JW (1983) Replication of Epstein-Barr virus in human epithelial cells infected in vitro. Nature 306: 480–483
Takahashi T (1973) Histological study of changes with aging in the nasopharyngeal mucosa in the soft palate (in Japanese). J Otolaryngol (Japan) 76: 1100–1116
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Nagai, H., Takahashi, H. & Yao, K. A morphological study of the human epipharyngeal mucosa. Eur Arch Otorhinolaryngol 254 (Suppl 1), S23–S26 (1997). https://doi.org/10.1007/BF02439715
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DOI: https://doi.org/10.1007/BF02439715