[Inverted papilloma of the ureter].
Two cases of ureteral inverted papilloma are reported. Case 1: A 48-year-old male had asymptomatic gross hematuria and filling defect of left middle ureter on intravenous pyelography. Segmental resection of ureter was performed. The specimen was a 1 cm polypoid lesion with histologic features resembling "multifocal bud-like proliferation", which was reported as the initial stage of the inverted urothelial tumor by Kunze et al. Case 2: A 64-year-old female with asymptomatic gross hematuria and complete obstruction of left middle ureter on ante- and retrograde pyelograms. Total nephroureterectomy was performed. A 4 cm lobulated and pedunculated lesion with histologic features of typical inverted urothelial papilloma was resected. Twenty-one cases of ureteral inverted papilloma in the literature, including our cases, are analyzed.
Aga
Y
Y
Department of Urology, Tokushima University, School of Medicine.
Kagawa
S
S
Takigawa
H
H
Yoneda
F
F
Sumiyoshi
Y
Y
Kurokawa
K
K
Sano
T
T
D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010212:Papilloma / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology