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Polypoid Cystitis

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UrinaryBladder_Inflamm_PolypoidCystitis1.jpg

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Like papillary cystitis, polypoid cystitis is a reactive lesion that may be seen in response to any agent that inflames or injures urothelial mucosa. In-dwelling catheters, colovesical fistulas, and bladder stones are amongst common causes. The image shows broad-based polypoid structures containing edematous and fibrotic stroma and lined by somewhat attenuated urothelium.

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