Abstract
This study conducted on inpatients admitted to Al-Diwaniyah teaching hospital at period from January to June 2010 to recognize the histopathological changes of tumor cells of urinary bladder in comparison with normal cells. The histopathological examination of urinary tract infections (UTIs) showed normal thickness of urothelium, in addition, the submucosa and the muscular tissue were congested and oedematous. The present study showed that the transitional cell carcinoma of the bladder divided into three major grades: Grade І , Grade ІІ, Grade ІІІ. In this study, the immunehistochemical expression of cytokeratin 7 used to confirm the diagnosis of urinary bladder cancer. The results revealed a positive and negative reaction between tumor cells and cytokeratin7 antibody.
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