➡️The first sign of life and development of the embryoblast on ultrasound at 6 weeks of gestation is the presence of the "ring with the diamond," as seen in the image (arrow). ➡️The diamond represents the embryo, which appears as a small echogenic or white protuberance with its mesocardial pulse, attached to a small bubble with echogenic borders and anechoic (dark) content, which is the yolk sac. All of this gives the appearance of an engagement ring😲, as it certainly represents a great respons

28.2: Embryonic Development