C67.0

Clinical Causes: Smoking: Tobacco use is the most significant risk factor for bladder cancer, including trigone tumors. Chemical Exposure: Occupational exposure to aromatic amines and other carcinogenic chemicals increases risk. Chronic Bladder Inflammation: Long-term bladder infections or irritations can contribute to cancer development. Previous Radiation Therapy: Radiation directed at the pelvis may increase risk. Genetic Factors: Family history of bladder cancer can predispose individuals. Age: Incidence increases with age, particularly in people over 55. Gender: Men are more commonly affected than women.

Key Symptoms: Blood in the urine (hematuria), often unnoticed until it becomes persistent. Frequent urination or a feeling of urgency. Pain or burning sensation during urination. Pelvic pain or discomfort in the lower abdomen. Back pain, particularly if the cancer has spread.

Diagnosis Path: Urinalysis to detect blood or abnormal cells in urine. Cystoscopy: a procedure involving a thin camera inserted into the bladder to visualize the tumor and take biopsy samples. Imaging Tests: Ultrasound, CT scans, or MRI to assess the extent of the tumor and check for spread. Biopsy: tissue samples obtained during cystoscopy are examined microscopically to confirm malignancy. Urine Cytology: microscopic examination of urine cells can support diagnosis, especially in detecting high-grade tumors.

Treatment Protocols: Transurethral Resection of Bladder Tumor (TURBT): a minimally invasive procedure to remove superficial tumors. Intravesical Therapy: administering medications like Bacillus Calmette-Guérin (BCG) directly into the bladder to treat or prevent recurrence. Radical Cystectomy: surgical removal of the bladder and possibly surrounding tissues or organs, typically for invasive or high-grade tumors. Chemotherapy: systemic drugs used to target cancer cells, especially if the cancer has spread. Radiation Therapy: may be employed for local control or in patients unfit for surgery. Immunotherapy: newer treatments that stimulate the immune system to attack cancer cells.