History of colposcopy in the United States. Chronology of colposcopy development worldwide.

Colposcopy was initially developed by Professor Hinselmann of Germany and is now a procedure that is recognized the world over. Twenty-two countries now represent the International Federation for Cervical Pathology and Colposcopy. Additionally, individual societies representing several countries exist.

Laser cylindrical excision to replace conization.

This report describes the procedures and results of two techniques, which were developed by the senior author (V.C.W.

Age at beginning of coitus versus chronologic age as a basis for Papanicolaou smear screening: an analysis of 747 cases of preinvasive disease.

Disease onset in 747 routinely screened women who developed cervical intraepithelial neoplasia was analyzed. Average age at diagnosis was 30 years; the range was 16 to 71 years. In 19% diagnosis was made after age 35, and in 1% after age 60.