Chromosome Number and Morphology of Benign Ovarian Cystic Teratomas

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Abstract
TERATOMAS have been of special interest for many years, and their genesis, variously attributed to incited totipotential cells, misplaced blastomeres and parthenogenesis, has been the subject of controversy. Willis1 summarized the data that indicated to him that these tumors are not malformed fetuses derived either from misplaced blastomeres or by parthenogenesis but, in fact, true neoplasms derived from cells that, early in development, escape from the action of primary organizers. Hunter and Lennox,2 to confirm Willis's theory that teratomas originate solely from host somatic cells, used the sex-chromatin technic first described by Barr and Bertram3 and examined 8 testicular teratomas. . . .