Section Editor: Dharam M. Ramnani, MD

Virginia Urology, Richmond, VA, USA

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Image Description

The lamina propria shows an intense eosinophilic infiltrate. Many cases are idiopathic. In others, a specific cause can be identified such as prior surgery, allergic reaction to a drug or a food item, response to a parasitic infection such as schistosomiasis, or systemic collagen vascular diseases.

Image 15 of 36