From the Department of Obstetrics and Gynecology, The Long Island Jewish Hospital, New Hyde Park, N. Y.

The authors wish to express appreciation to Dr. Arthur Purdy Stout, Consultant Surgical Pathologist, Columbia-Presbyterian Medical Center, and to Dr. James I. Berkman, Chief of Laboratories and Pathologist, The Long Island Jewish Hospital, for their invaluable aid in reviewing this report and confirming the diagnoses in the cases presented. The photographs were prepared by Mr. Sidney Shapiro, Department of Visual Aids, The Long Island Jewish Hospital.