ALAIN POL, ISM / SCIENCE PHOTO LIBRARY ALAIN POL, ISM / SCIENCE PHOTO LIBRARY
Normal uterus. Coloured frontal hysterosalpingogram of a woman's abdomen, showing her healthy uterus (yellow, centre) and fallopian tubes (yellow, left and right). Hysterosalpingography (HSG) is a radiological procedure to investigate the shape of the uterine cavity, and the shape and patency of the fallopian tubes. It entails the injection of a radio-opaque material into the cervical canal and usually fluoroscopy with image intensification.
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