Beaver P C, Rolon F A
Am J Trop Med Hyg. 1981 May;30(3):625-37. doi: 10.4269/ajtmh.1981.30.625.
Large tumors removed from the lower abdomen and pleural cavity of a 24-year-old male Amerindian in Paraguay consisted mainly of multitudes of minute, proliferating, acephalic cestode larvae embedded in fibrous tissue. The parasite resembled Sparganum proliferum Stiles 1908 but was markedly less differentiated. From a review of the literature and examination of available reference material, it is concluded that in addition to the present one there are eight well documented cases of proliferating acephalic larval cestode infection in man: five in Japan and one in Florida (USA) that were S. proliferum, one in Pennsylvania (USA) that was an undifferentiated cysticercus or cysticercoid, and one in Taiwan that probably was an undifferentiated tetrathyridium. In four other cases the parasites are reclassified as being of doubtful nature in three and a racemose cysticercus in one. Review of the known species of proliferating cestode larvae naturally occurring in animals failed to identify possible sources of the acephalic forms observed in man.
从巴拉圭一名24岁美洲印第安男性的下腹部和胸腔中切除的大型肿瘤，主要由大量微小的、增殖性的、无头绦虫幼虫组成，这些幼虫嵌入纤维组织中。该寄生虫类似于1908年斯泰尔斯描述的增殖裂头蚴，但分化程度明显较低。通过对文献的回顾和对现有参考资料的检查，得出的结论是，除了本病例外，还有8例有充分记录的人类增殖性无头幼虫绦虫感染病例：5例在日本，1例在美国佛罗里达州，为增殖裂头蚴；1例在美国宾夕法尼亚州，为未分化的囊尾蚴或似囊尾蚴；1例在台湾，可能是未分化的四槽蚴。在其他4例病例中，3例寄生虫被重新分类为性质可疑，1例为葡萄状囊尾蚴。对动物体内自然存在的增殖性绦虫幼虫的已知种类进行回顾，未能确定人类中观察到的无头形式的可能来源。
