A retrospective study of 21 patients with surgically confirmed ovarian torsion found that 10 had a normal ultrasound with doppler findings.
String of pearls sign ovarian torsion.
Conversely the cysts are unilateral in ovarian torsion with accompanying abnormal morphology of the ovary.
Conversely the cysts are unilateral in ovarian torsion with accompanying abnormal morphology of the ovary congested ovarian stroma.
This leads to an increase in the size of the ovary and displaces the follicles peripherally commonly described as the string of pearls sign.
2 12 however ovarian enlargement of more than 4cm is the most consistent ultrasound feature in ovarian torsion the greatest risk occurring in cysts measuring 8 12 cm.
When the venous supply becomes cut off the ovary swells and becomes congested as seen in figure 2.
Peripheral cysts the string of pearls sign can be seen in polycystic ovary disease but the morphology of the ovary is usually normal.
Ultrasonographic criteria for establishing the diagnosis of pcos are 10 or more cysts that are 2 8 mm in diameter and are peripherally arranged around an echodense stroma.
Ponnatapura j 1 dyer rb 2 ou jj 2.
The ovarian string of pearls sign.
Download as powerpoint open in image viewer figure 4b.
Unilateral ovary measuring 4cm is most common finding.
As it progresses other findings may include free fluid 87 of cases a twisted vascular pedicle and a string of pearls sign.
Additionally ovaries located close to midline are suggestive of torsion in the correct setting string of pearls sign.
Peripheral cysts the string of pearls sign can be seen in polycystic ovary disease but the morphology of the ovary is usually normal.
The string of pearls or beads sign in the ovary is the ultrasound sign of multiple small 5 mm follicles peripherally located in the gonad.
There are several features of torsion that could be apparent in gray scale.
Additionally ovaries located close to midline are suggestive of torsion in the correct setting string of pearls sign us with string of pearls chang 2008 multiple small uniform cysts lined around the periphery of engorged ovary.
