History: 9 yo male with hematuria
Solution: Benign urothelial polyp
Most urothelial masses are malignant tumors. Therefore, polyps are often mistaken for transitional cell carcinomas. However, transitional cell carcinoma and squamous cell carcinoma are exceedingly rare in the pediatric population. The differential diagnosis could also include an inverted papilloma, but this usually occurs in adults. Since the mass is not mobile, a fungal mass is unlikely and the echogenicity is not consistent with a bladder stone.
These polyps are most frequently seen in the ureter and upper collecting system, but can occur in the bladder. These polyps are a benign process that often requires removal, but no follow-up or additional intervention.
Most urothelial masses are malignant tumors. Therefore, polyps are often mistaken for transitional cell carcinomas. However, transitional cell carcinoma and squamous cell carcinoma are exceedingly rare in the pediatric population. The differential diagnosis could also include an inverted papilloma, but this usually occurs in adults. Since the mass is not mobile, a fungal mass is unlikely and the echogenicity is not consistent with a bladder stone.
These polyps are most frequently seen in the ureter and upper collecting system, but can occur in the bladder. These polyps are a benign process that often requires removal, but no follow-up or additional intervention.
Ultrasound Images
