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JAMA. 1903;XL(16):1085-1086. doi:10.1001/jama.1903.02490160037009.
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The occurrence of chorionic epithelium and of syncytium elsewhere than in connection with pregnancy, normal and pathologic, at first thought seems entirely unlikely and paradoxic. There have been described, however, a considerable number of mixed or teratomatous growths of the testicle in which were contained large cells and syncytial masses similar to those of the placenta and of the interesting tumor that occasionally develops from the placenta, variously designated as chorioepithelioma, syncytioma, placentoma, etc. Peculiar testicular tumors of this kind have been observed from time to time and described under different special names—as angioplastic sarcoma by Malassez and Monod, who regarded the masses of anastomosing giant-like cells with spaces often filled with blood vessels as incompletely developed new vessels. Within the last year Wlassow1 and Schlagenhaufer,2 independently of each other, describe tumors in the testicle with syncytial masses and hydatidiform structures both in the primary and secondary growths. Wlassow calls


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