Uterine and fallopian tube diagram

Hysterography is a common examination method in modern gynecological examinations. It can generally detect the cause and location of fallopian tube diseases. Many women with infertility hope to find the cause of the disease through this examination method. So where is the uterus and fallopian tube located? What is a hysterogram?

Uterine and fallopian tube location

Each bilateral fallopian tube is divided into four parts: the interstitial part, the isthmus, the ampulla and the ductus arteriosus. The interstitial part is included in the muscle of the uterus. The lumen is initially inclined upward and outward. The length of this section is 0.8 to 2 cm, and the diameter of the lumen is 0.5 to 1.250 m. The isthmus is the posterior side of the bilateral fallopian tubes, which is narrow, straight and strong. It connects to the opening of the uterus, called the bilateral fallopian tube cervical opening. That is, the narrow part close to the uterus, with a lumen diameter of 2 to 3 mm. Then it slowly expands to the wider part on both sides, namely the ampulla; the diameter of the ampulla is 5 to 8 mm, which is the front side of the bilateral fallopian tubes connected to each other with thin and curved walls; the fallopian tube is a swollen fallopian tube with a cracked edge called an umbrella, and there are bilateral abdominal openings of the fallopian tubes in the shallow layer of the fallopian tube.

What is a hysterogram

The radiography is to introduce fluid into the uterine cavity through the vaginal cervix. Due to the effect of pressure, the fluid passes through the fallopian tubes into the pelvis, thereby observing whether the fallopian tubes are blocked or narrow or have abnormal shape. Depending on the type of liquid introduced, it can be divided into gas contrast examination and iodized oil contrast examination. The ultrasound examination uses saline solution to detect the fluidity of the fallopian tubes on both sides. This method only allows the operator to observe both fallopian tubes by himself, and the photos cannot be saved, but the harm to the body is relatively small. If there is no abnormality after the operation, pregnancy can be achieved in the second month. The iodized oil or diatrizoate contrast examination is performed and observed under X-rays. The introduced liquid shows a high-density shadow, and a film can be taken to preserve the examination status at that time, which is convenient for patients to refer to other doctors. The disadvantage is that it requires exposure to radiation, and it is generally recommended to take contraceptive measures for three months before becoming pregnant.

In addition, there is hydrotubation, which can roughly distinguish the condition of both fallopian tubes. However, this is not very accurate. It depends only on the patient's own feeling. Even if liquid can be introduced, it is difficult to judge whether the fallopian tubes are blocked on one side or both sides, whether there is stenosis or abnormal shape. Therefore, it is recommended to do angiography.