Robot-Assisted Partial Cystectomy in a 10-Year-Old: Managing a Rare Bladder Leiomyoma With Minimally Invasive Surgery.

Bladder leiomyomas are rare benign smooth muscle tumors, exceptionally uncommon in children. We report a 10-year-old boy with a one-week history of severe penile pain during urination. Imaging revealed a 4.4-cm anterior bladder wall mass initially suspected to be a urachal cyst; biopsy showed a fibroinflammatory lesion. He underwent cystoscopy and robot-assisted laparoscopic partial cystectomy with complete excision and negative margins. The postoperative course was uncomplicated, with symptom resolution. Final pathology confirmed an infarcted leiomyoma within the muscularis propria. This case highlights that robot-assisted laparoscopic partial cystectomy is a safe, feasible, minimally invasive option for definitive management in selected pediatric patients.