PTU - Polskie Towarzystwo Urologiczne
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INVERTED PAPILLOMA OF THE BLADDER
Article published in Urologia Polska 1997/50/1.

authors

Ewa KoĽmińska 1, Maciej Czaplicki 1, Piotr Dobroński 1, Piotr Trypens 1, Roman Pykało 2, Andrzej Borkowski 1
1 Katedra i Klinika Urologii
AM w Warszawie
Kierownik Kliniki: prof. dr hab. med. Andrzej Borkowski
2 Zakład Anatomii Patologicznej Instytutu Biostruktury
AM w Warszawie
Kierownik Zakładu: prof. dr hab. med. Stefan Kru¶

keywords

bladder bladder neoplasms inverted papilloma

summary

Inverted papilloma is a very rare neoplasm of the urinary tract. It appears mainly in
the bladder, but also in the renal pelvis, ureter and urethra. As a rule, nwerted papilloma
is recognized as a benign neoplasm, but some authors reported its malignant potential
and coexistence with transitional bladder carcinoma.
Material and methods. The group of 7 patients treated due to inverted papilloma of
the bladder was analysed. Six of them were qualified to the operation with clinical
diagnosis of bladder carcinoma, and one patient was operated on due to benign prostatic
hypertrophy. Six patients underwent transurethral resection of the papilloma; in 1 patient
the tumor was resected during transvesical adenomectomy.
Results. Pathological examination revealed in all patients inverted papilloma of the
bladder; in 1 of them it was directed to bladder carcinoma.
During the mean follow up of 54,4 months we did not observe any recurrence of
inverted papilloma in a group of 6 patients.
Conclusions. 1. Inverted papilloma is very rare, but papillomatous character of the
tumor localized in the bladder trigone or bladder neck may suggest the diagnosis. These
clinical informations may be important forpathologist.
2. During the follow up of inverted papilloma patients the cystoscopic or ultra-
sonographic control is indicated due to possibility of recurrence or malignant potential
of the tumor.

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