Abstract
Urothelial tumors in children are rare pathology. A 20-months-old male patient presented with upper ureteric papillary tumor in a setting of ureteroscopy after multiple procedures for cystine stones former. Biopsy revealed low-grade papillary carcinoma.
Highlights
Urothelial tumors in children are extremely rare pathology
Urothelial lesions of the upper urinary tract are very rare, accounting for about 5% of urothelial malignancies and 10% of renal tumors diagnosed every year in the United States [5]
Papillary tumors recognized in WHO classification includes urothelial papilloma, papillary urothelial hyperplasia, papillary urothelial neoplasm of low malignant potential (PUNLMP), low-grade papillary carcinoma and high-grade papillary carcinoma [8,9]
Summary
Urothelial tumors in children are extremely rare pathology. They usually occur in the bladder. A 20-months-old male patient presented with upper ureteric papillary tumor in a setting of ureteroscopy after multiple procedures for cystine stones former. Upper urinary tract; ureter; urothelial cell carcinoma; child. Urothelial tumors may be flat or papillary as a consequence of the pattern of growth of the intraepithelial lesion, which may lead to invasive urothelial carcinoma [1,2,3].
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