ccording to American Cancer Society (ACS) data, rate of new cases with urothelial carcinoma is 6% in men and 2% in women, while urothelial carcinomas rank 4 th place in all cancers in men and 9 th place in women. 1,2 In a recent study it was reported that the bladder tumor incidence increased with the decrease of the age of first pregnancy and parity.3 Although there are data suggesting that bladder tumors in women tend to be more advanced stage at the time of the diagnosis and recurrence and progression rates are higher compared to men, our knowledge on incidence and clinical course of urothelial carcinoma in pregnancy is limited to a few simultaneous cases. With the opinion that bladder might be fragile secondary to hormonal changes in pregnancy, we aimed to share the result of bipolar resection technique that we used considering localization of the tumor.Turkiye Klinikleri J Urology 2015;6(2) 49 A Rare Bladder Tumor in a Young Pregnant Woman: Case Report A AB BS S T TR RA AC CT T Urothelial cancers, most common tumors of urinary system, are frequently localized in the bladder. These tumors which are generally detected at superficial phase and have papillary structure can be also rarely seen during pregnancy. Our knowledge on time and method of the treatment about this extremely rare situation is rather limited. We share the results of bipolar transurethral resection technique that we applied in a thirteen weeks pregnant patient with papillary urothelial carcinoma which we had diagnosed through clinical and ultrasonographic findings.K Ke ey y W Wo or rd ds s: : Urinary bladder neoplasms; pregnancy; hematuria; cytology Ö ÖZ ZE ET T Üriner sistemin en sık gözlenen tümörü olan ürotelyal kanserler sıklıkla mesanede yerleşirler. Genellikle yüzeyel aşamada saptanan ve papiller vasıflı olan bu tümörler çok nadiren gebelikte de saptanabilmektedir. Bu son derece nadir durumda tedavinin zamanı ve yöntemi konusundaki bilgilerimiz nispeten sınırlıdır. Biz de on üç haftalık gebe bir hastada klinik ve ultrasonografik bulgularla tespit ettiğimiz papiller ürotelyal karsinom olgusunda uyguladığımız bipolar transüretral rezeksiyon tekniğinin sonuçlarını paylaştık.A An na ah h t ta ar r K Ke e l li i m me e l le er r: : Mesane neoplazileri; gebelik; hematüri; sitoloji T Tu ur rk ki iy ye e K Kl li in ni ik kl le er ri i J J U Ur ro ol lo og gy y 2 20 01 15 5; ;6 6( (2 2) ): :4 49 9--5 52 2