"Epidemiology "
Expected headings
"Epidemiology "
"Risk factors"
"Radiographic assessment"
"Ultrasound"
"Complications"
"Can be seen as a gestational sac within the distended cervix which gives an hour-glass appearance to the uterus. Usually, internal os is closed. At times the gestational sac extends into the lower uterine segment (abnormally low sac position). There is hyperechoic decidual reaction around the gestational sac."
"it is important to consider miscarriage in progress as a differential when the gestational sac is located within the endocervical canal; features suggestive of a miscarriage include:"