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Nasal and Paranasal Papillomas: A Clinicopathological Study of Ten Cases Yasuo Hattori 1 1Department of Otolaryngology, Nippon Medical School pp.1059-1066
Published Date 1984/12/20
DOI https://doi.org/10.11477/mf.1492209892
  • Abstract
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 A clinicopathological study of nasal and paranasal papillomas was made in 10 cases (4 exophytic papillomas, 3 inverted papillomas, 3 mixed papillomas).

 Using transmissoin electron microscopy, in 4 out of the 10 cases, gaps in the basal lamina were observed in one exophytic papilloma and 3 inverted papillomas. In these 4 cases, infiltration of cytoplasmic processes of tumor cells or of tumor cells themselves through the gaps in the basal lamina into the stroma were observed. One of these 4 cases changed into squamous cell carcinoma 6 years later.

 The pathological findings were not helpful in predicating recurrence.


Copyright © 1984, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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