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Histological classification of pteryrium Kaoru Araki-Sasaki 1 , Akemi Shishido 1 , Jun Hosohata 1 , Misako Gohda-Tatebayashi 1 , Shinji Danjo 2 1Dept of Ophthalmol, Toyonaka Municipal Hosp 2Dept of Ophthalmol, Kinki Central Hosp pp.1135-1138
Published Date 1997/6/15
DOI https://doi.org/10.11477/mf.1410908845
  • Abstract
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Specimens of surgically resected pterygium in 15 eyes were subjected to histological studies using HE and PCNA staining. All the cases were unilateral. The ages averaged 59.5 years. The histological features were classified into four stages : primary, proliferative, mature and atrophic stages. The connective tissue consisted of dense fibers in the primary stage. It contained PCNA-positive cells in the apical portion in more advanced stages. The connective tissue including fibroblasts was replaced by elastotic degenerative tissue in the atrophic stage. Numerous PCNA-positive cells appeared in the epithelium throughout the pterygium in the proliferative stage. They became localized in the apical area in the mature stage and disappeared in the atrophic stage. The findings seemed to show that resection of pterygium is to be performed during the proliferative stage or later in order to avoid recurrence.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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