Question:


What is the diagnosis based on the given image?

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A single banana-shaped cavity draining into one tube, shifted off midline.
Updated On: Jun 24, 2026
  • Uterus didelphys
  • Bicornuate uterus
  • Unicornuate uterus
  • Septate uterus
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The Correct Option is C

Solution and Explanation

Step 1: The hysterosalpingogram shows a single, slender, banana-shaped endometrial cavity that tapers at the apex and drains into one fallopian tube, with the uterus shifted off the midline. This is the classic look of a unicornuate uterus.

Step 2: A unicornuate uterus (unicornis unicollis) is a class II Mullerian duct anomaly. It accounts for roughly 10 percent of uterine anomalies and is associated with miscarriage and infertility. The cavity is fusiform because only one Mullerian duct has developed.

Step 3: The distractors show different cavities. Uterus didelphys has two separate uteri and cervices. A bicornuate uterus has two horns with a single cervix and an indented fundus. A septate uterus has a normal external contour with a dividing septum. The single banana-shaped laterally deviated cavity fits unicornuate uterus (option c).
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