Squamous Cell Carcinoma, Urinary Bladder, Rat
In the presence of a large tumor mass, the urinary bladder is usually distended. The bladder wall is sometimes irregularly depressed at the base of the tumor as a result of invasion. Many dilated tortuous blood vessels which distribute to the tumor site are prominent on the serosal side; on the mucosal side, tumors usually grow exophytically to form solid, sessile, solitary or sometimes multiple,large tumor masses.
KeywordsEpidermoid carcinoma keratinizing carcinoma
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