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本文报道2例罕见的颅内原发性内胚窦瘤。CT扫描等检查与术中所见一致。2例均具有性腺内发生的内胚窦瘤所具备的一切组织学特征,AFP和PAS阳性。作者对其发生机理及原发于松果体以外的内胚窦与异位松果体瘤的区别,从发生部位和形态学等方面进行了文献复习,证明本文2例内胚窦瘤并非属于异位松果体瘤的范围,从而进一步阐明了原发于性腺以外任何部位的内胚窦瘤,都可能与原始生殖细胞向生殖腺移行过程中,发生迷离或残留有关的论点。
This article reports 2 cases of rare intracranial endodermal sinus tumor. CT scan examination and intraoperative findings. Both cases had histological features of endodermal sinus tumors occurring in the gonads, positive for AFP and PAS. The author of its mechanism and primary in the pineal endometriosis and ectopic pineal tumor differences, from the site of occurrence and morphology and other aspects of the literature review, that this article 2 cases of endodermal sinus tumor does not belong to Ectopic pineal tumors in order to further elucidate the origin of endometriotic sinus tumor in any part of the gonad, may be with the original germ cells to the gonadal migration process, the occurrence of blur or residue on the argument.