Update: We are now collecting Disclosures from all users who edit content. You will be prompted to update these when you next edit content or you can complete your disclosures at any time in your user profile. This has been reflected in an updated terms-of-use.

Fallopian tube torsion

Last revised by Dr Avni K P Skandhan on 13 Jan 2022

A Fallopian tube torsion is a type of adnexal torsion and usually occurs in association with an ovarian torsion (when it is then termed a tubo-ovarian torsion). An isolated fallopian tube torsion is rare but can occur. 


An isolated tubal torsion can occur as a late complication of tubal ligation 1,2.

Other risk factors for an isolated fallopian tube torsion include 3,8 


There is a well-recognized right-sided predilection 9

Radiographic features


Reported sonographic findings include 3,5

  • a normal-appearing uterus and ovaries with normal flow
  • free fluid
  • a dilated tube with thickened, echogenic walls and internal debris 
  • a convoluted echogenic mass thought to represent a thickened, torsed tube
  • sonographic whirlpool sign: described as a relatively specific sign of tubal torsion 7

Reported primary CT findings of isolated tubal torsion include 3,4

  • an adnexal mass
  • twisted appearance to the fallopian tube with dilated tube greater than 15 mm
  • thickened and enhancing tubal wall and luminal CT attenuation greater than 50 HU, compatible with hemorrhage

Secondary signs include

  • free intrapelvic fluid
  • peritubular fat stranding
  • enhancement and thickening of the broad ligament
  • regional ileus

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Case 1
    Drag here to reorder.
  • Case 2
    Drag here to reorder.
  • Case 3: with ovarian torsion- paratubal cyst
    Drag here to reorder.
  • Case 4: tubo-ovarian torsion
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.