“…Their possible origins from the mesonephric apparatus were explained and he termed them 'mesonephromas'. Since then, several accounts of these tumours have appeared together with hypotheses about their histogenesis (Jones and Seegar, 1940;Teilum, 1954;Novak, Woodruff and Novak, 1954;Novak and Woodruff, 1959;Parker, Dockerty, and Randall, 1960;Suprun and Soferman, 1960;Welch and Hellwig, 1960;Wade-Evans and Langley, 1961;Lee, Dockerty, Wilson, and Symmonds, 1962;Horowitz, 1964;Villa Santa, 1964;Fawcett, Dockerty, and Hunt, 1966;Scully and Barlow, 1967;Ross and Shelley, 1968;Saavedra and Sandow, 1968). These reports show that both the histological criteria and the hypotheses about their histogenesis have changed.…”