The comparative morphogenesis of extragenital and gonadal teratoid tumors

Abstract

seen increaaing int u c i t in the problems of teratogcnesis and the 1 cl'itii c irupoi tancc ok embryonic and tropho-I,l:i$tic lac tors in the development of tumoi 5:; (j Most writers10 hate conceded that the gonatlal tcratoid growths originate from a tolipotential germinal element of some sort, Iiut cxti agcnital teratoid tumors, 011 the other liarid, ha\ e almost invariably been considered to rc.sult from aberrations i n somatic developrrient.l\ Iittle evidence has been brought forth 10 date to show that they, too, may be of gcirninal origin.