Where can ureteral tumor excise?

summary

Ureteral tumors, most of them are malignant ureteral cancer, so these diseases look very small, but cause great harm to the human body. Because the ureter is deep behind the abdominal cavity and in front of the psoas muscle, and the ureter is thin, even when the tumor grows to be able to block the ureter, it is not easy to find the tumor, let alone determine the nature of the tumor. Therefore, we need to do a series of examinations to determine the location and nature of ureteral tumor (benign or malignant, specific lesion type). So let's share where the ureteral tumor will be removed?.

Where can ureteral tumor excise?

First: intravenous urography intravenous urography (IVU) also known as intravenous pyelography (IVP). Generally through intravenous injection of contrast agent, and then take a film to understand the situation of urinary tract access. It can play a role in the diagnosis of ureteral tumors to determine the location of the tumor and the number of lesions. It should be noted that: whether these two purposes can be achieved depends on whether the kidney on the same side has function. After injection of contrast agent, the kidney with function can secrete contrast agent into the urine, so that the urinary tract can be developed under X-ray. If the kidney on the same side has no function, the urinary tract (including ureter) can not be developed, and the focus of ureter can not be found. In addition, the tumor in the ureter is very small, and it is difficult to find the location of the lesion if it does not cause obstruction. Only when the tumor is large enough, can the filling defect be found in the film.

Second: retrograde urography: when there is no development of intravenous urography, the doctor will choose to do retrograde urography. The so-called retrograde urography is from the urethra into a mirror to the bladder (is it terrible, don't worry too much, skilled doctors do generally won't be very painful), find the same side of the ureter in the bladder opening, to the same side of the ureter insert a ball point pen size tube, generally inserted into the kidney, fixed. After injecting contrast agent into the tube in the X-ray room, take a film to find out if the ureter is not unobstructed, so as to find the location of the lesion.

Third: find tumor cells in urine, find tumor cells in urine sediment: generally need to take the first urine (called morning urine) in the morning, after centrifugation, stain the urine sediment smear to find tumor cells. The chance of finding tumor cells by this method is not great, and the positive rate is not high, so this method is less and less used at present. In order to improve the positive rate, doctors also want a lot of ways, such as the need to do retrograde fistula patients through catheter to collect urine, which can improve the positive rate.

matters needing attention

Does everyone have to do all these tests? Not necessarily, if the ipsilateral kidney has no function, and the contralateral kidney is normal, CT and other imaging data can confirm that there is a tumor in the ureter. At this time, in order to reduce the pain and economic burden of patients, doctors may choose to remove the tumor directly without ureteroscopy (in the case of distant metastasis).