C67.3

Clinical Causes: Smoking tobacco, which significantly increases risk Chronic bladder irritation or inflammation, often due to infections or chemical exposure Exposure to industrial chemicals, such as aromatic amines used in dye manufacturing Previous cancer treatments, especially radiation therapy in the pelvic area Genetic predisposition or family history of bladder cancer Age, as risk increases with advancing years Male gender, with higher incidence compared to females

Key Symptoms: Painless hematuria (blood in urine) which is often the first noticeable sign Frequent urination or urgency to urinate Pain or a burning sensation during urination Lower back pain or pelvic discomfort Difficulty urinating or a weak urinary stream Unexplained weight loss and fatigue in advanced cases

Diagnosis Path: Urinalysis to detect blood or abnormal cells in the urine Cystoscopy, a procedure where a thin tube with a camera is inserted into the bladder for direct visualization Biopsy during cystoscopy to obtain tissue samples for histopathological analysis Imaging studies such as ultrasound, CT scan, or MRI to assess tumor size, location, and possible spread Urine cytology to identify abnormal or cancerous cells shed into the urine

Treatment Protocols: Transurethral resection of bladder tumor (TURBT) for early-stage cancers Intravesical therapy, including chemotherapy or immunotherapy directly into the bladder Radical cystectomy, which involves removal of the entire bladder and surrounding tissues for invasive cancers Chemotherapy treatments to kill cancer cells systemically Radiation therapy in selected cases, often combined with other treatments Targeted therapy or immunotherapy for advanced or resistant cases Follow-up surveillance to monitor for recurrence or progression