PMC5367453_01
Cystoscopy revealed an erythematous mucosal lesion over the anterior wall and a small prostate.. Notes: (A) Anterior wall of bladder. (B) Prostatic urethra.
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Cystoscopy revealed an erythematous mucosal lesion over the anterior wall, with no evidence of prostatic obstruction (Figure 1).
Histopathologic examination of the specimen obtained by cystoscopy showed infiltration of the bladder submucosa by numerous eosinophils.. Notes: Hematoxylin and eosin staining, x200 (A) and x 400 (B).
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Cold-cup biopsies showed diffuse infiltration of mucosa by eosinophils (Figure 2).
Immunohistochemical examination of the specimen obtained by cystoscopy.. Notes: (A) Staining limited to the superficial cell layer for Cytokeratin 20; x 200. (B) staining in full thickness of the urothelium for CD44; x 200.
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Immunohistochemical examination of the specimen obtained by cystoscopy revealed CD44 staining in the entire thickness of the urothelium (Figure 3).