fallopian tube torsion

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.

Pathology

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

Other risk factors for an isolated fallopian tube torsion include

Location

There is a well-recognized right-sided predilection

Radiographic features

Ultrasound

Reported sonographic findings include

  • 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
CT

Reported primary CT findings of isolated tubal torsion include

  • 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
Siehe auch:
und weiter: