Migration of intrauterine contraceptive device
Citation, DOI & article data
Migration / displacement of an intrauterine contraceptive device is one of the complications that can occur with an intrauterine contraceptive device (IUCD). It can represent either an intra-uterine or extra-uterine migration.
Most intrauterine contraceptive devices are normally positioned in the fundal region.
The accepted orientation depends on the type of device but in the case of a standard T-shaped device, the stem normally extends toward the cervix with the two arms fully unfolded, reaching laterally toward the uterine cornual regions. A change in this position in terms of location can be interpreted as a migration.
Low IUCDs, however, can spontaneously migrate back to the fundus after a few months.
Radiographic features / assessment
A migrated intrauterine conceptive device can be assessed and monitored on multiple imaging modalities, with ultrasound being considered the commonest modality of choice.
On ultrasound, the stem of a standard T-shaped IUCD is usually easily identified as a linear echogenic structure within the endometrium when in normal position. This position changes with migration.
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