URINARY BLADDER: Mimics of Neoplasia and New Pathologic Entities

摘要: A wide range of epithelial and mesenchymal pseudoneoplastic lesions the urinary bladder occur, encompassing inflammatory, metaplastic, developmental abnormalities. These may present with same nonspecific signs symptoms as malignant tumors, a tissue biopsy is needed to make definitive diagnosis. The urologist must be aware these pathologic that mimic neoplasm clinically pathologically, it crucial for pathologist recognize avoid overdiagnosis inappropriate aggressive therapy. Many found in have been well-described, more common are usually readily recognized. Although they distinctive, less prove diagnostic challenge because lack familiarity lesion. Their morphologic features closely those neoplasm, making interpretation difficult. discussed this review include spectrum proliferative changes mucosa exhibit, unusual forms cystitis, reactive spindle cell lesions, misplaced or ectopic tissues within bladder, abnormalities, normal anatomic structures. pitfalls associated discussed.