Guzman E R
Department of Obstetrics and Gynecology, St. Vincent's Medical Center of Richmond, Staten Island, New York.
Am J Obstet Gynecol. 1990 May;162(5):1253-4. doi: 10.1016/0002-9378(90)90029-7.
A case is reported in which gastroschisis was definitively diagnosed at 12 3/7 weeks' gestation by transvaginal ultrasonography. This is the earliest diagnosis reported in the literature and would seem to support the theory that gastroschisis and omphalocele are embryologically distinct entities.