Intraepithelial carcinoma of the cervix.A cytohistological and clinical study

THE BIOLOGICAL STATUS OF CARCINOMA IN‐SITU OF THE UTERINE CERVIX

“…This is partly due to variations in the population from which the cases were drawn. Ethnic differences in the frequency of invasive carcinoma are known (Scapier, Day and Durfee, 1952;Reagan, 1954) and a high frequency of invasive cancer of the cervix is seen in parous women and in women of the poorer social classes (Haines and Taylor, 1962). Two of the series showing the highest prevalence of this condition were those of MacGregor and of Parker and his colleagues, both of which were drawn from among women who had some symptom referable to the genital organs.…”