(Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
Monochorionic, diamniotic twins T sign (Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
Dichorionic, diamniotic twins lamdba sign (Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
Placenta (P) covers the os. Crosses (+) approximate the cervical length and the bladder (B) is seen on the right. (Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
(Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
