Proceedings of the American Society of Cytopathology Companion Session at the 2019 United States and Canadian Academy of Pathology Meeting Part 1: towards an International System for Reporting Serous Fluid Cytopathology.

INTRODUCTION

The International System for the Reporting of Serous Fluid Cytopathology was initiated to provide a common language for cytopathology reports on body fluids.

MATERIALS AND METHODS

The International Academy of Cytology and the American Society of Cytopathology collaborated to provide evidence-based and expert-driven terminology for reporting serous fluids. Lead editors were selected and expert authors invited to form working groups for the diagnostic categories and special sections.

RESULTS

Preliminary results of the collaboration include the 6 diagnostic terminology categories: non-diagnostic, negative for malignancy, atypia of undetermined significance, suspicious for malignancy, malignant-primary, and malignant-metastatic. Four special sections on ancillary testing, peritoneal washings, cytotechnical aspects, and quality assurance will appear in the final text. Initial results of an international survey indicate strong support for a uniform terminology for reporting serous fluids.

CONCLUSIONS

This article outlines the initial findings of the collaboration as presented to the United States and Canadian Academy of Pathology at the 2019 annual meeting at the National Harbor, MD.