Bladder cancer is a significant global health issue. When the cancer spreads into the muscle layer of the bladder (muscle-invasive bladder cancer), a common treatment is the surgical removal of the bladder (radical cystectomy). However, even after surgery, it can be difficult for doctors to accurately predict how an individual patient's disease will progress using standard staging methods. This retrospective observational study aims to find better ways to predict patient outcomes by examining the tumor microenvironment, which is the environment immediately surrounding the cancer cells. Specifically, researchers are looking at the relationship between the tumor cells, the surrounding supportive tissue (the stroma), and the patient's natural immune cells. The study will review existing medical records and archived tumor tissue samples from at least 100 patients who underwent radical cystectomy at the South Egypt Cancer Institute between 2018 and 2024. Under a microscope, researchers will assess three main features: * Tumor-Stroma Ratio (TSR): The amount of tumor tissue compared to the surrounding supportive tissue. * Tumor-Infiltrating Lymphocytes (TILs): The number of immune cells that have moved into the tumor to try and fight it. * Tertiary Lymphoid Structures (TLS): Organized clusters of immune cells that form near the tumor. By analyzing these features, the researchers hope to determine if specific patterns of immune and supportive cells are linked to better or worse survival rates, such as Overall Survival and Disease-Free Survival. Understanding this immune-stromal landscape could lead to more personalized risk assessments and better treatment plans for future bladder cancer patients.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Overall Survival (OS)
Timeframe: From the date of radical cystectomy until the date of death from any cause, assessed up to 72 months (6 years).