Bladder Biopsy Interpretation: Evidence-Based Diagnostic Pathology with Immunohistochemistry, Molecular Markers, and Reporting Standards
The bladder biopsy asks more of the pathologist than almost any other specimen. The difference between a reactive process and carcinoma in situ, or between superficial and muscle-invasive disease, sets the course of a patient's care. This book is written for the moment of decision at the microscope.
Rather than cataloguing entities one after another, Bladder Biopsy Interpretation is organized around the diagnostic problems that arise in daily practice. Each chapter begins with the question the pathologist must answer, presents the criteria that resolve it, and identifies the points where interpretation most often fails. The result is a reference that reads the way diagnosis actually works.
The book covers the full range of urothelial tract pathology: normal histology and pre-analytical variables, flat and papillary lesions, invasive and variant urothelial carcinoma, glandular and squamous tumors, inflammatory and reactive mimics, spindle cell and unusual lesions, secondary tumors, and the upper tract. Diagnostic reasoning is grounded in the WHO 2022 classification, AJCC 8th edition staging, the College of American Pathologists reporting protocols, and The Paris System for urinary cytology.
Immunohistochemistry is presented as panels built around specific diagnostic dilemmas, with the expected staining patterns laid out for direct use. The molecular chapter addresses the biomarkers now influencing treatment, including FGFR alterations, PD-L1 expression, HER2, and mismatch repair status, with attention to how these results belong in the report.
A distinguishing strength of the book is its treatment of the pathology report as the culmination of the diagnostic process. The closing chapters provide model synoptic reports for common scenarios, the exact reporting language for findings such as muscularis propria status and lymphovascular invasion, and a practical guide to the pathologist's contribution at the multidisciplinary tumor board. A final chapter surveys digital pathology and artificial intelligence, distinguishing what is validated today from what remains in development.
Inside you will find:
A problem-based organization that follows the flow of diagnostic decision making.Differential diagnosis tables, diagnostic criteria, clinical pearls, and clearly flagged reporting and safety alerts.Immunohistochemistry panels organized by diagnostic problem.Model synoptic reports and reporting language aligned with current CAP, WHO, AJCC, and Paris System standards.Quick-reference appendices covering classification, staging, IHC panels, cytology categories, and molecular tests.This book serves surgical pathologists and genitourinary subspecialists at the bench, residents and fellows preparing for practice and board examinations, and the urologists and oncologists who rely on the pathology report to guide management. It is built to sit beside the microscope and to be consulted on the cases where accuracy matters most.
Kristi B. Gomez presents a reference designed for clarity, daily utility, and the standards that define current bladder pathology practice.