INEVITABLE ABORTION

• Gestational sac with fetus having become detached from the implantation site, leading to spontaneous abortion within the next few hours.
• Clinical findings:
• Severe pain.
• Uterine contractions.
• Dilated cervix.

ULTRASOUND

• Sac situated low within the uterus.
• Sac surrounded by perigestational hemorrhage.
• Dilated cervix.
• Uterine contractions originating in the uterine fundus may be observed sonographically.

	Severe oligohydramnios, fluid in cervix
	Poor decidual reaction. Sac within uterine cavity (white lines) and not within decidua. Spontaneous abortion two days later.
	Gestational sac low within the uterine cavity. Low implantation versus inevitable abortion. Spontaneous abortion same day