Complex sentence: Due to the histological similarity of the epithelium of Walthard cell rests and Brenner tumors to the urothelium of the lower urinary tract, it has been proposed that Brenner tumors and Walthard cell rests signify urothelial differentiation within the female genital tract.
Split into simpler sentences: Due to the histological similarity of the epithelium of Walthard cell rests and Brenner tumors to the urothelium of the lower urinary tract. Also, it has been proposed that Brenner tumors and Walthard cell rests signify urothelial differentiation within the female genital tract.