Subchorionic hematoma: Difference between revisions
| (5 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==Background== | ==Background== | ||
[[File:2910 The Placenta-02.jpg|thumb|Placental anatomy.]] | |||
*Bleeding underneath the chorion membranes enclosing the fetus in the uterus | *Bleeding underneath the chorion membranes enclosing the fetus in the uterus | ||
*Most common cause of vaginal bleeding in patients who are 10-20 weeks by gestational age, make up ~11% of cases<ref>Ben-Haroush A, Yogev Y, Mashiach R, Meizner I. Pregnancy outcome of threatened abortion with subchorionic hematoma: possible benefit of bed-rest? Isr Med Assoc J. 2003 Jun;5(6):422-4. PMID: 12841015.</ref> | *Most common cause of vaginal bleeding in patients who are 10-20 weeks by gestational age, make up ~11% of cases<ref>Ben-Haroush A, Yogev Y, Mashiach R, Meizner I. Pregnancy outcome of threatened abortion with subchorionic hematoma: possible benefit of bed-rest? Isr Med Assoc J. 2003 Jun;5(6):422-4. PMID: 12841015.</ref> | ||
| Line 12: | Line 13: | ||
==Evaluation== | ==Evaluation== | ||
[[File:PMC4219764 pone.0111676.g005.png|thumb|An 8-week fetus associated with a small (less than one-third of the chorionic sac circumference) subchorionic hematoma (arrows).]] | |||
[[File:PMC4219764 pone.0111676.g007.png|thumb|An 8-week fetus associated with a large (at least two-thirds of the chorionic sac circumference) subchorionic hematoma (arrows).]] | |||
===Workup=== | ===Workup=== | ||
*Pregnancy test | *Pregnancy test | ||
| Line 18: | Line 21: | ||
===Diagnosis=== | ===Diagnosis=== | ||
*Typically diagnosed on [[pelvic ultrasound]] | |||
==Management== | ==Management== | ||
| Line 33: | Line 37: | ||
==References== | ==References== | ||
<references/> | <references/> | ||
[[Category:OBGYN]] | |||
Latest revision as of 17:45, 1 March 2023
Background
- Bleeding underneath the chorion membranes enclosing the fetus in the uterus
- Most common cause of vaginal bleeding in patients who are 10-20 weeks by gestational age, make up ~11% of cases[1]
Clinical Features
- Vaginal bleeding
- Increased risk of pregnancy loss, particularly when amounting to 25% or more of the gestational sac[2]
Differential Diagnosis
Vaginal Bleeding in Pregnancy (<20wks)
- Ectopic pregnancy
- Subchorionic hematoma
- First Trimester Abortion
- Complete Abortion
- Incomplete Abortion
- Inevitable Abortion
- Missed Abortion
- Septic abortion
- Threatened Abortion
- Gestational trophoblastic disease
- Consider when pregnancy-induced hypertension is seen before 24 wks of gestation
- Heterotopic pregnancy
- Implantation bleeding
- Molar pregnancy
- Non-pregnancy related bleeding
- Cervicitis
- Fibroids
- Implantation bleeding
Vaginal Bleeding in Pregnancy (>20wks)
- Emergent delivery
- Placental abruption
- Placenta previa
- Vasa previa
- Uterine rupture
- Preterm labor
- Vaginal trauma
- Placenta accreta
- Intrauterine fetal demise
Evaluation
Workup
- Pregnancy test
- CBC
- Type & screen
Diagnosis
- Typically diagnosed on pelvic ultrasound
Management
Disposition
See Also
External Links
References
- ↑ Ben-Haroush A, Yogev Y, Mashiach R, Meizner I. Pregnancy outcome of threatened abortion with subchorionic hematoma: possible benefit of bed-rest? Isr Med Assoc J. 2003 Jun;5(6):422-4. PMID: 12841015.
- ↑ Pearlstone M, Baxi L. Subchorionic hematoma: a review. Obstet Gynecol Surv. 1993 Feb;48(2):65-8. PMID: 8437776.