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Japanese

Clinicopathological features of primary choroidal malignant melanoma Satoru Kase 1 , Kazuhiko Yoshida 1 , Wataru Saito 1 , Ken-ichi Namba 1 , Naoko Tsujino 1 , Masahiro Muramatsu 1 , Naoki Furudate 1 , Shigeaki Ohno 1 1Dept of Ophthalmol and Visu Sci,Hokkaido Univ Grad Sch of Med pp.705-709
Published Date 2005/5/15
DOI https://doi.org/10.11477/mf.1410100328
  • Abstract
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Purpose:To describe clinicopathological findings in 4 eyes of primary choroidal malignant melanoma. Cases and Method:Four eyes of 4 patients with primary choroidal malignant melanoma underwent histopathological examinations. They were 29-year-old male,50-year-old female,62-year-old male,and 66-year-old female. Enucleated eyes were fixed in 4% paraformaldehyde and embedded in paraffin. Sliced specimens were stained by hematoxylin-eosin and by hematoxylin after demelanization. Findings:All the eyes had bullous retinal detachment. Total retinal detachment was present in 1 eye. The tumor size ranged from 13×13 mm to 25×25mm. The interval between visual impairment and enucleatrion ranged from 2 to 9 months. Cases enucleated later tended to have larger tumor with advanced stage. All the eyes showed massive deposit of melanin in the tumor. Demelanization facilitated observation of morphological features of the tumor including mitosis. Tumor cells with spindle-shaped nuclei were the prevalent features in 2 eyes. The other 2 eyes showed mixture of epithelioid cells. Conclusion:While primary choroidal malignant melanoma is relatively rare in Japan. Detailed clinicopathological evaluation is mandatory.


Copyright © 2005, 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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