Bladder diverticula are mucosal outpunching of the bladder without a muscle layer. It could be detected incidentally or by giving symptoms of its complications.
A 59-year-old male patient presented with painless gross hematuria. A primary tumor arising in a bladder diverticulum was detected with computed tomography. Partial cystectomy with para-aortic lymph node dissection was performed. The pathology report showed high-grade papillary transitional cell carcinoma (PT3). Unfortunately, the patient died of an acute cardiac event and sepsis after one month postoperative.
Once patient had a bladder diverticulum, we should expect the patient to have complications. One of that is intradiverticulum bladder malignancy. Imaging studies such computed tomography with contrast should be performed to confirm the diagnosis. Surgical interventions play a major role in the treatment. Most patients present with late, so the survival rate is poor in general.
Intradiverticulum bladder tumors are a major challenge in urological practice and need multiple investigations to be detected. These types of bladder tumors have high mortality rate.

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