Pediatric Radiology

, Volume 49, Issue 5, pp 632–637 | Cite as

Pediatric ovarian volumes measured at ultrasound after contralateral unilateral oophorectomy

  • Kimberly A. Dao
  • Sameh Tadros
  • Serena Chan
  • Pamela M. Poremski
  • Judy H. SquiresEmail author
Original Article



Changes that occur in the remaining ovary after contralateral oophorectomy are not well described.


To determine average ovarian volume in pediatric patients after contralateral oophorectomy compared to age-matched controls with two normal ovaries.

Materials and methods

We performed a retrospective review of ultrasound examinations and electronic medical records of patients ages 0–18 years who had unilateral oophorectomy from 2000 to 2017 (n=64). We used 384 consecutive normal age-matched ovaries for comparison, analyzing mean ovarian volumes.


Higher mean ovarian volume (mL) was observed in patients who had oophorectomy compared to controls in the first decade of life (P<0.003) and second decade of life (P<0.0003). Higher mean ovarian volume was seen in both premenarchal and menstruating patients with prior oophorectomy when compared to controls (P<0.05 and P<0.0001, respectively). When comparing volume during menstrual cycle, we saw higher mean ovarian volumes in the oophorectomy group compared to the control group for the follicular (P<0.0001), pre-ovulatory (P=0.0005) and luteal phases (P<0.0003). We provide an updated reference of normal ovarian volumes for pediatric patients, with values similar to those already reported in the literature.


Ovarian volume is higher in pediatric patients with one normal ovary following contralateral oophorectomy. The provided normative volumes can be used in evaluating these patients.


Adolescents Children Normal ovarian volume Oophorectomy Ovary Torsion Ultrasound 


Compliance with ethical standards

Conflicts of interest



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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Kimberly A. Dao
    • 1
    • 2
  • Sameh Tadros
    • 1
    • 3
  • Serena Chan
    • 4
  • Pamela M. Poremski
    • 3
  • Judy H. Squires
    • 1
    • 3
    Email author
  1. 1.Department of RadiologyUniversity of Pittsburgh Medical CenterPittsburghUSA
  2. 2.Department of RadiologyBoston Children’s HospitalBostonUSA
  3. 3.Department of RadiologyUPMC Children’s Hospital of PittsburghPittsburghUSA
  4. 4.Department of Obstetrics, Gynecology & Reproductive SciencesUniversity of Pittsburgh Medical CenterPittsburghUSA

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