# A Huge Hemangioma of the Urinary Bladder: A Case Report and Literature Review

## TL;DR

This case report describes a rare large hemangioma of the urinary bladder in a young man with a history of painless hematuria and discusses the challenges in diagnosis and treatment.

## Contribution

The paper contributes a rare case of bladder hemangioma with long-term follow-up and highlights the importance of tissue diagnosis.

## Key findings

- Painless gross hematuria is the most common symptom of bladder hemangioma.
- The case highlights the challenges in diagnosing and managing this rare condition due to lack of standardized guidelines.
- Tissue diagnosis and follow-up are emphasized as critical for proper management.

## Abstract

Cavernous hemangioma of the bladder is a benign and very rare vascular tumor. It can be isolated or part of a syndrome. Neither clinical symptoms nor imaging modalities lead to a definitive diagnosis as there are no specific findings on imaging studies or specific symptoms. Painless gross hematuria is the most common chief complaint and presentation and should never be underestimated.

Here, we report a case of a large hemangioma of the urinary bladder in a young man who presented with recurrent recent episodes of painless gross hematuria and, surprisingly, with a previous episode of painless hematuria 15 years ago, which was treated successfully with partial cystectomy. We discuss the clinical features, evaluation, diagnosis, biopsy, management, the challenges encountered in treatment, and assert the value of tissue diagnosis and follow-up pattern and period. Due to the rarity of the tumor and lack of trials and evidence-based guidelines for management, treatment modalities vary and the risk for recurrence is questionable and not known.