Recognizing an Incarcerated Gravid Uterus When the Cervical Canal Is Absent on Transvaginal Ultrasound

Asuka Okawa1,2, Sho Tano3, Mikako Inoue1,4

  • 1Department of Obstetrics, Nagoya University Hospital, Nagoya, JPN.

Cureus
|December 30, 2025
PubMed
Summary

Incarcerated gravid uterus (IGU) is a rare condition mimicking placenta previa. Nonvisualization of the endocervical canal on ultrasound is a key sign, aiding diagnosis and safer surgical planning for delivery.

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