Specimen and Method
This embryo was found during a forensic dissection of a 38-year-old Japanese woman on December 4, 1982 in the Department of Forensic Medicine, Kobe University School of Medicine. The uterus was slightly enlarged and a marked corpus luteum was present in the left ovary. When the anterior wall of the uterus was opened, a gestational sac (GS) about 10 mm in diameter was seen. With the naked eye, however, one was unable to perceive anything in it. The GS was fixed in 10% formalin for 5 days and then examined in formalin with a binocular dissecting microscope. During removal of adnexa, the embryo was found intact, surrounded by a perfect amnion.