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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Abbreviations
- Retained products of conception (RPOC)
Synonyms
- Retained trophoblastic tissue
- Retained placenta
- Placental polyp
Definitions
- Intrauterine tissue that develops from conception and persists post pregnancy
- Chorionic villi indicates persistent placental tissue
- Occurs after delivery or termination of pregnancy
- Intrauterine tissue that develops from conception and persists post pregnancy
IMAGING
General Features
Ultrasonographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
CLINICAL ISSUES
Presentation
Demographics
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
- Grewal K et al: The natural history of pregnancy-related enhanced myometrial vascularity following miscarriage. Ultrasound Obstet Gynecol. 55(5):676-82, 2020
- Wang SS et al: Imaging of postpartum/peripartum complications. Radiol Clin North Am. 58(2):431-43, 2020
- Kassam Z et al: Benign gynecologic conditions of the uterus. Magn Reson Imaging Clin N Am. 25(3):577-600, 2017
- Kamaya A et al: Clinical and imaging predictors of management in retained products of conception. Abdom Radiol (NY). 41(12):2429-34, 2016
- Zubor P et al: Recurrent secondary postpartum hemorrhages due to placental site vessel subinvolution and local uterine tissue coagulopathy. BMC Pregnancy Childbirth. 14:80, 2014
- Sellmyer MA et al: Physiologic, histologic, and imaging features of retained products of conception. Radiographics. 33(3):781-96, 2013
- Atri M et al: Best predictors of grayscale ultrasound combined with color Doppler in the diagnosis of retained products of conception. J Clin Ultrasound. 39(3):122-7, 2011
- Kitahara T et al: Management of retained products of conception with marked vascularity. J Obstet Gynaecol Res. 37(5):458-64, 2011
- Kamaya A et al: Retained products of conception: spectrum of color Doppler findings. J Ultrasound Med. 28(8):1031-41, 2009
- Weydert JA et al: Subinvolution of the placental site as an anatomic cause of postpartum uterine bleeding: a review. Arch Pathol Lab Med. 130(10):1538-42, 2006
- Durfee SM et al: The sonographic and color Doppler features of retained products of conception. J Ultrasound Med. 24(9):1181-6, 2005
- Sadan O et al: Role of sonography in the diagnosis of retained products of conception. J Ultrasound Med. 23(3):371-4, 2004
Related Anatomy
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Abbreviations
- Retained products of conception (RPOC)
Synonyms
- Retained trophoblastic tissue
- Retained placenta
- Placental polyp
Definitions
- Intrauterine tissue that develops from conception and persists post pregnancy
- Chorionic villi indicates persistent placental tissue
- Occurs after delivery or termination of pregnancy
- Intrauterine tissue that develops from conception and persists post pregnancy
IMAGING
General Features
Ultrasonographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
CLINICAL ISSUES
Presentation
Demographics
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
- Grewal K et al: The natural history of pregnancy-related enhanced myometrial vascularity following miscarriage. Ultrasound Obstet Gynecol. 55(5):676-82, 2020
- Wang SS et al: Imaging of postpartum/peripartum complications. Radiol Clin North Am. 58(2):431-43, 2020
- Kassam Z et al: Benign gynecologic conditions of the uterus. Magn Reson Imaging Clin N Am. 25(3):577-600, 2017
- Kamaya A et al: Clinical and imaging predictors of management in retained products of conception. Abdom Radiol (NY). 41(12):2429-34, 2016
- Zubor P et al: Recurrent secondary postpartum hemorrhages due to placental site vessel subinvolution and local uterine tissue coagulopathy. BMC Pregnancy Childbirth. 14:80, 2014
- Sellmyer MA et al: Physiologic, histologic, and imaging features of retained products of conception. Radiographics. 33(3):781-96, 2013
- Atri M et al: Best predictors of grayscale ultrasound combined with color Doppler in the diagnosis of retained products of conception. J Clin Ultrasound. 39(3):122-7, 2011
- Kitahara T et al: Management of retained products of conception with marked vascularity. J Obstet Gynaecol Res. 37(5):458-64, 2011
- Kamaya A et al: Retained products of conception: spectrum of color Doppler findings. J Ultrasound Med. 28(8):1031-41, 2009
- Weydert JA et al: Subinvolution of the placental site as an anatomic cause of postpartum uterine bleeding: a review. Arch Pathol Lab Med. 130(10):1538-42, 2006
- Durfee SM et al: The sonographic and color Doppler features of retained products of conception. J Ultrasound Med. 24(9):1181-6, 2005
- Sadan O et al: Role of sonography in the diagnosis of retained products of conception. J Ultrasound Med. 23(3):371-4, 2004
