title: Brunn's nests: Proliferative epithelial lesion in urinary bladder.
mesh_terms: D001706:Biopsy; D003556:Cystitis / Q000473:pathology; D003937:Diagnosis, Differential; D004847:Epithelial Cells; D004848:Epithelium / Q000473:pathology; D006801:Humans; D007249:Inflammation; D001745:Urinary Bladder Diseases / Q000473:pathology* / Q000652:urine; D001749:Urinary Bladder Neoplasms / Q000473:pathology