结论：促纤维增生性小圆细胞肿瘤是一种特殊的高度恶性肿瘤。
Conclusion: Desmoplastic small round cell tumor is a distinct high-grade malignant neoplasm.
目的分析扁桃体原发弥漫小圆细胞恶性肿瘤的组织学特点和类型。
Objective to analyze the histological characteristics and types Of tonsillar primary diffuse small-round cell malignant tumors.
成熟型畸胎瘤18例，未成熟型畸胎瘤6例，恶性小圆细胞性肿瘤1例。
Of the 25 patients there were 18 mature teratomas, 6 immature teratomas, and 1 malignant small round cell tumor.
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