Vesicocutaneous fistula due to vesical diverticulitis with stones: A case report and literature review

INTRODUCTION: We encountered an extremely rare case of a vesicocutaneous fistula due to vesical diverticulitis with stones. CASE PRESENTATION: A 78‐year‐old male patient presented to our department with complaints of suppurative discharge in the suprapubic area. Computed tomography revealed an enlarged prostate, a vesical diverticulum with stones located on the ventral side, and an aberrant connection between the anterior bladder wall and the external surface of the skin. The patient was diagnosed with a vesicocutaneous fistula due to vesical diverticulitis and was successfully treated with a multidisciplinary approach including vesical diverticulectomy with stone removal and nonviable tissue debridement. The patient continues to receive regular outpatient follow‐ups with urinary catheter changes. CONCLUSION: Vesicocutaneous fistulas due to vesical diverticulitis with stones are extremely rare. We should be aware that a vesical diverticulum with stones located on the ventral side might pose a high‐risk factor for the formation of a vesicocutaneous fistula in elderly patients.