Fig. 4

MRI pelvis in a 16-year-old female presented with unresolving dysmenorrhea. Coronal T2W SE images (a, b) shows a small hemiuterus in the left hemipelvis (curved white arrow) with another separate myometrium-lined structure in the right hemipelvis with hyperintense contents (black arrow) within the lumen. A dilated tortuous right fallopian tube (white arrowhead) with hematosalpinx (confirmed on T1W images—not shown in image) is seen. Axial T1 SE image (c) and axial T1 FS (d) shows hyperintense contents within the structure in right hemipelvis suggesting a rudimentary horn with hematometra (black arrow). Features are consistent with a hemiuterus with a non-communicating, functional, rudimentary right horn