shortening of the cervical canal

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Shortening of the uterine cervical canal as the name implies refers to an abnormal shortening of the uterine cervical length. It is considered a sign of cervical incompetence during pregnancy and can lead to premature delivery.

Pathology

Etiology
  • primary (i.e. congenital/idiopathic)
  • secondary
    • multiple gestations
    • obstetric/gynecological trauma
    • increase in prostaglandins

Radiographic features

In a single pregnancy, the cervical length is usually considered to be ~4 cm up until 37 weeks, while in multifetal pregnancy it can often be <3 cm by 32 weeks .

An endocervical canal length of <3 cm or <2.5 cm (depends on the institution) is considered diagnostic of shortening .

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu shortening of the cervical canal: