Williams J L, Cumming W A, Walker R D, Hackett R L
Pediatr Radiol. 1986;16(4):322-3. doi: 10.1007/BF02386873.
Bladder tumors of epithelial origin are rare in children. A 7-year-old male presented with intermittent painless hematuria. An ultrasound examination of the bladder revealed a single polypoid mass which proved to be a transitional cell papilloma.
上皮源性膀胱肿瘤在儿童中较为罕见。一名7岁男性出现间歇性无痛血尿。膀胱超声检查发现一个单个息肉样肿物，病理证实为移行细胞乳头状瘤。
