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Ectopic Pregnancy
Pathology
Ectopic pregnancy is a pregnancy in which the developing blastocyst becomes implanted at a site other than the endometrium of the uterine cavity.
Almost all ectopic pregnancies occur in the fallopian tube (96 percent), but other possible sites include cervical, interstitial, hysterotomy (cesarean) scar, ovarian, or abdominal. In rare cases, a multiple gestation may be heterotopic (include both an intrauterine pregnancy [IUP] and an extrauterine pregnancy).
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Ectopic pregnancy is a pregnancy in which the developing blastocyst becomes implanted at a site other than the endometrium of the uterine cavity.
The majority of ectopic pregnancies occur in the fallopian tube (96 percent), but other possible sites include: cervical, interstitial (also referred to as cornual; a pregnancy located in the proximal segment of the fallopian tube that is embedded within the muscular wall of the uterus), hysterotomy (cesarean) scar, intramural, ovarian, or abdominal.
In addition, in rare cases, a multiple gestation may be heterotopic (include both a uterine and extrauterine pregnancy).
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Other possible sites include cervical, interstitial (also referred to as cornual, a pregnancy located in the proximal segment of the fallopian tube that is embedded within the muscular wall of the uterus), hysterotomy scar (eg, in patient with a previous cesarean delivery), intramural, ovarian, or abdominal. In addition, in rare cases, a multiple gestation may be heterotopic (include both a uterine and extrauterine pregnancy).
Six-week ectopic pregnancy
Six-week ectopic pregnancy
The fallopian tube has been opened to reveal the gestational sac.
Reproduced with permission from: Aron Schuftan, MD. Copyright © Aron Schuftan, MD.
Graphic 62515 Version 2.0
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The majority of ectopic pregnancies occur in the fallopian tube (96 percent), but other possible sites include: cervical, interstitial (also referred to as cornual; a pregnancy located in the proximal segment of the fallopian tube that is embedded within the muscular wall of the uterus), hysterotomy (cesarean) scar, intramural, ovarian, or abdominal.
In addition, in rare cases, a multiple gestation may be heterotopic (include both a uterine and extrauterine pregnancy).
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Other possible sites include cervical, interstitial (also referred to as cornual, a pregnancy located in the proximal segment of the fallopian tube that is embedded within the muscular wall of the uterus), hysterotomy scar (eg, in patient with a previous cesarean delivery), intramural, ovarian, or abdominal. In addition, in rare cases, a multiple gestation may be heterotopic (include both a uterine and extrauterine pregnancy).
Six-week ectopic pregnancySix-week ectopic pregnancy
The fallopian tube has been opened to reveal the gestational sac.
Reproduced with permission from: Aron Schuftan, MD. Copyright © Aron Schuftan, MD.
Graphic 62515 Version 2.0