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Accession number;01A0189823
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| Title;A Case of Malignant Myoepithelioma in the Lacrimal Gland. |
| Author;
IIDA KAZUYUKI
(Jikei Univ. School of Medicine)
SHIKISHIMA KEIGO
(Jikei Univ. School of Medicine)
OKIDO MAKIKO
(Jikei Univ. School of Medicine)
SATO SHIGEAKI
(Jikei Univ. School of Medicine)
MASUDA YOICHIRO
(Jikei Univ. School of Medicine)
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Journal Title;Journal of Japanese Ophthalmological Society
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Journal Code:Z0666A
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ISSN:0029-0203
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VOL.105;NO.1;PAGE.42-46(2001)
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| Figure&Table&Reference;FIG.9, TBL.3, REF.13 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Background: A case of malignant myoepithelioma in the lacrimal gland is reported. Case: The patient, a 77-year-old male with increasing proptosis in the left eye was referred to us. Steroid therapy was not effective, therefore lateral orbitotomy was performed. Result: On pathological examination, the proper structure of actini was normal, but the cord of actini revealed the destruction layer tapering into the surrounding area. The tumor was composed of sarco-matoid changes with spindle-shaped cells, collagen fibers, and myxoid pattern. immunohistochemically, tumor cells were positive for epithelial membrane antigen (EMA) and .ALPHA.-smooth muscle actin (.ALPHA.-SMA). Electronmicroscopy showed desmosomes in intercellular junctions. Conclusion: Recently, there have been attempts to distinguish myoepithelioma from pleomorphic adenoma on the basis of cellular organization. In our case, duct formation was less than in pleomorphic adenoma. Therefore we diagnosed this tumor as malignant myoepithelioma. (author abst.) |
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