Question:
Identify the uterine anomaly shown in the hysterosalpingogram (HSG) X-ray below.
Identify the uterine anomaly shown in the hysterosalpingogram (HSG) X-ray below.
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A single banana-shaped, off-midline cavity with one tube.
Updated On: Jun 24, 2026
- Septate uterus
- Uterus didelphys
- Unicornuate uterus
- Bicornuate uterus
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: The hysterosalpingogram opacifies the uterine cavity and fallopian tubes with contrast. The shape of the contrast-filled cavity reveals the type of Mullerian (congenital uterine) anomaly.
Step 2: The image shows a single, slender, banana-shaped or elongated cavity deviated to one side, filling only one cornu with a single tube. This is the classic HSG appearance of a unicornuate uterus, which results from the failure of one Mullerian duct to develop. Hence option 3 is correct.
Step 3: Why the others are wrong. A septate uterus shows a single external outline with two cavities separated by a septum. Uterus didelphys shows two completely separate cavities and cervices. A bicornuate uterus shows two cavities with a deep external fundal cleft. The solitary single-horn cavity here matches the unicornuate uterus.
Step 2: The image shows a single, slender, banana-shaped or elongated cavity deviated to one side, filling only one cornu with a single tube. This is the classic HSG appearance of a unicornuate uterus, which results from the failure of one Mullerian duct to develop. Hence option 3 is correct.
Step 3: Why the others are wrong. A septate uterus shows a single external outline with two cavities separated by a septum. Uterus didelphys shows two completely separate cavities and cervices. A bicornuate uterus shows two cavities with a deep external fundal cleft. The solitary single-horn cavity here matches the unicornuate uterus.
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