88 THE ENZYME TREATMENT OF CANCER
of the one sort of tissue may be actually destroyed, or ‘suffocated.’ In this way at one time a true embryoma may be found in the curious form of an isolated tooth, at another time, perhaps, as a sort of glioma, or as an ovarian true thyroid-struma, or, again, as a chorio-epithelioma. with metastases.”
In other respects Pick’s communication is of great interest. His researches have established for, at any rate some, ovarial teratomata, as Schlagenhaufer’s* had already done for the like tumours of the testis, the occurrence of a chorion or trophoblast—in the instance recorded in a more or less degenerate condition. Their finds throw a considerable amount of welcome light upon the (according to Wilms**) frequently malignant character of the testicular embryomata, and the cases—some nine in 1902, to which Pick’s instance furnished a tenth—of the occurrence of cancer in connection with an ovarian embryoma. As in the ordinary chorio-epithelioma of gestation, in embryomata of ovary and testis, carcinomatous growth, when present, is now (1903) recognizable as having arisen from the asexual generation (chorion or trophoblast). These words were actually read to a large audience, as occurring in a paper on “The Embryology of Tumours,” by me, on February i6, 1903, before the Royal Society, Edinburgh. This was the last occasion on which I communicated anything of my researches to this learned society. Practically the whole of that paper is given in this book as it was originally written. Publication of it was refused by the Royal Society, Edinburgh. Shortly afterwards I made a full abstract of it in English,
* Schlagenhaufer, Fr.: “Uber das Vorkommen chorio-epithelioma und traubenartiger Wucherungen in Teratomen,” in Wiener klin. Wochenschr., 1902, Nos. 22-23.
** Wilms, M. : “Die Mischgeschwülste,” 1902, iii., p. 242.