期刊
AMERICAN JOURNAL OF CLINICAL PATHOLOGY
卷 131, 期 2, 页码 222-227出版社
OXFORD UNIV PRESS INC
DOI: 10.1309/AJCPU98ABIPVJAIV
关键词
Epithelioid sarcoma; INI1; Prognosis
类别
Epithelioid sarcoma (ES) is rare with a poor prognosis and for which a loss of INI1 expression has been recently reported. We report a study of 106 cases with clinical, histologic, and immunohistochemical data, including INI1 expression, and follow-up data. Of the 106 cases, 70,were the conventional subtype and 36 the large cell subtype. INI1 was negative in 86 cases (81.1 %): 57 (81 %) of 70 conventional and 29 (81 %) of 36 large cell subtypes. Treatment modalities were available for 76 and follow-up for 80 patients. Of the 80 patients, 43 (54%) experienced metastasis and 25 (31 %) died of the disease. Univariate analysis indicated that tumor size and mitotic index were significant for metastasis-free survival, whereas proximal location, tumor size and mitotic index were significant for overall survival. Loss of expression of INI1 is frequent in the conventional and large cell subtypes of ES and can be used as a diagnostic marker, but it has no prognostic impact.
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