What appeared to be a cyst in a healthy fetus turned out to be an unformed twin “absorbed” early in pregnancy, connected by a second umbilical cord and still growing.
DONALD G. McNEIL Jr., NY Times: Science
Wed, 03/20/2019 - 2:19pm
What appeared to be a cyst in a healthy fetus turned out to be an unformed twin “absorbed” early in pregnancy, connected by a second umbilical cord and still growing.