The Flipped Ovary Sign in Ovarian Torsion

Mark D. Sugi, Anika G. Patel, Johnny Yi, Maitray D. Patel

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The diagnosis of ovarian torsion is challenging and relies mostly on morphologic findings. Occasionally, women or children with acute pelvic pain who have undergone an initial ultrasound (US) evaluation with results interpreted as negative for ovarian torsion will return with recurrent or increasing pain, prompting an US reevaluation. The flipped ovary sign refers to a demonstrable change in the orientation of the ovary on follow-up US examinations, recognized by changing positions of ovarian landmarks established by follicles, cysts, or masses. This sign is valuable for identifying ovarian torsion in these patients, even in the absence of classic morphologic or Doppler features of ovarian torsion.

Original languageEnglish (US)
Pages (from-to)839-843
Number of pages5
JournalJournal of Ultrasound in Medicine
Issue number4
StatePublished - Apr 2021


  • flipped ovary
  • intermittent torsion
  • ovarian torsion
  • pelvic pain
  • ultrasound

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'The Flipped Ovary Sign in Ovarian Torsion'. Together they form a unique fingerprint.

Cite this