Upper Tract Urothelial Tumors
Urothelial tumors are usually rarely occurred, when compared to the other tumors developed in the human body. The average age of the people, who get affected from this condition is around 65 years and it gets prominent during 70s and 80s. the occurrence of this problem is more in men, than the women, with the occurrence ratio of 3:1. There are 40% of the upper tract tumors, which become non-invasive.
Urothelial tumor present in the urinary tract is developed through two important factors. The major percentage of these tumors are developed because of the transitional cell carcinoma or TCC, which account from major percentage, about 95% and the renal pelvis tumors account for this condition for approximately 5%.
There are many factors that could increase the risk of TCC and so the urinary, as the following.
Tobacco smoking as a major contributing factor
More consuming coffee, about more than 7 times a day, to a slight percentage
Analgesic abuse or long term exposure to it
Occupational exposure of the patient towards the agents, in the fields like tar, plastic and petrochemical industries
The symptoms for this medical condition are usually restricted. There are major symptoms and systematic symptoms experienced by the patient.
Miscroscopic haematuria or gross haematuria is the major symptom, for up to 70% to 80%.
Diagnosis for the medical condition of urothelial tumors in the upper tract is done through imaging studies. One or more than one of the following tests are conducted to diagnose the condition.
IVP or Intravenous Pyelography, for evaluation of the upper urothelial tract
Computer Tomography or CT
Ureteroscopy to visualize the tumor directly
Cytopathology with samples of the urine
Diagnostic study is performed to understand the grade of the medical condition. Grade and stages of the condition give clear clues of the severity of the condition and also how to treat the condition. The condition can be in any grade ranging from grade 1, 2 or 3. When it comes to the staging, the condition can be any of Tis, Ta, T1, T2, T3, T4, N0, N1, N2, N3, M0 and M1.
There are two kinds of medical therapies are considered for the treatment of the urothelial tumors of the upper tract. Treatment is usually suggested according to the severity and intensity of the disease.
For localised diseases there are certain kinds of treatments are recommended, as the following.
Radical nephroureterectomy is considered as a gold standard treatment to cure the localised disease conditions, with the bladder cuff bladder. The location of the tumor can be anywhere within the upper urinary tract. In this procedure, distal ureter and bladder cuff are removed and thereby benefiting with the relieving symptoms. The important consideration here is that there should not be delay between the diagnosis and tumor removal, because the risk of progression of the disease and increase of the risk will be more.
Conservative surgery is recommended for the UTUC with low risk. It can preserve the upper urinary renal unit.
The choice of which technique has to be used for the surgery depends on the many constraints like, anatomical location, technical constraints and also the overall experience in the surgeries for the surgeon.
Endoscopic ablation or Ureteroscopy is a very selective option chosen by the doctor, as the choice depends on different situations and cases.
Availability of the flexible ureteroscope, pilers and laser generators, needed for the biopsies.
When the complete resection of the tumor is strongly recommended or advocated
The patient is informed with stringent surveillance and need for close surveillance.
Segmental ureteral resection is recommended for specific definitive grade analysis and staging and well preserve of the kidney. The treatment is indicated or preferred for the low-grade tumors, non-invasive tumors or mid-ureter, which is impossible to be removed through endoscopic means, as well as for the invasive tumors and high-grade tumors, in the conditions, when renal sparing surgery is selected.
For advanced diseases, treatments considered arenephroureterectomy, chemotherapy and radiotherapy.