Classification and Reporting Guidelines for the Pathology Diagnosis of Placenta Accreta Spectrum (PAS) Disorders: Recommendations from an Expert Panel

Overview

Journal Mod Pathol

Specialty Pathology

Date 2020 May 17

PMID 32415266

Citations 48

Authors

Jonathan L Hecht

Rebecca Baergen

Linda M Ernst

Philip J Katzman

Suzanne M Jacques

Eric Jauniaux

T Yee Khong

Leon A Metlay

Liina Poder

Faisal Qureshi

Joseph T Rabban 3rd

Drucilla J Roberts

Scott Shainker

Debra S Heller

Affiliations

Soon will be listed here.

Abstract

The terminology and diagnostic criteria presently used by pathologists to report invasive placentation is inconsistent and does not reflect current knowledge of the pathogenesis of the disease or the needs of the clinical care team. A consensus panel was convened to recommend terminology and reporting elements unified across the spectrum of PAS specimens (i.e., delivered placenta, total or partial hysterectomy with or without extrauterine tissues, curetting for retained products of conception). The proposed nomenclature under the umbrella diagnosis of placenta accreta spectrum (PAS) replaces the traditional categorical terminology (placenta accreta, increta, percreta) with a descriptive grading system that parallels the guidelines endorsed by the International Federation of Gynaecology and Obstetrics (FIGO). In addition, the nomenclature for hysterectomy specimens is separated from that for delivered placentas. The goal for each element in the system of nomenclature was to provide diagnostic criteria and guidelines for expected use in clinical practice.

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