What is the most common cause of intra-uterine adhesions?
Pelvic instrumentation, such as dilatation and curettage for aborted pregnancy.
What imaging modalities can visualize intrauterine adhesions?
Hysteroscopy, hysterosalpingography, or sonohysterosalpingography
The uterine cavity is markedly irregular and constricted, compatible with adhesions from prior D&C procedures.
There is also a marked indentation into the uterine cavity at the fundus, which is nonspecific on the hysterosalpingogram, and could represent a large fibroid, an arcuate or septate uterus, or even a bicornuate uterus. A correlative ultrasound (not shown) did not show a large fundal fibroid or a bicornuate configuration, so the indentation is compatible with an arcuate uterus.
There is also non-filling of the right Fallopian tube. The left Fallopian tube fills and spills normally.