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Background <p>Appendiceal abscesses are a heterogeneous manifestation of acute appendicitis, with diverse pathological substrates and imaging phenotypes. The lack of standardized definitions hampers cross-study comparability and consistent diagnostic pathways.</p> Methods <p>The Italian Society of Surgical Research (SIRC) and the Italian Society of Emergency Surgery and Trauma (SICUT) conducted a four-round modified Delphi, culminating in an in-person consensus conference (Rome, November 6, 2025). A multidisciplinary panel refined the statements on pathological definitions, classifications, and imaging correlates.</p> Results <p>Consensus was reached on 22 statements. Part 1 reports seven statements that delineate the spectrum from uncomplicated to complicated appendicitis (phlegmonous, gangrenous, and perforated) and distinguishes appendiceal abscesses from appendiceal masses. An imaging framework centered on CT descriptors was used to support consistent radiology–pathology correlations.</p> Conclusions <p>These statements provide a unified taxonomy and diagnostic framework for appendiceal abscesses and related entities, improving interdisciplinary communication, and enabling cross-study comparability. </p>

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Appendiceal abscess: pathologic definitions and a diagnostic framework—SIRC/SICUT consensus

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月15日

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  • Roberto Cirocchi,
  • Gioia Brachini,
  • Giovanni Alemanno,
  • Massimiliano Allegritti,
  • Lana Al-Sabe,
  • Gabriele Anania,
  • Nikolaos-Achilleas Arkoudis,
  • Marco Assenza,
  • Paolo Aurello,
  • Francesco Barberini,
  • Guido Bellezza,
  • Maria Irene Bellini,
  • Alan Biloslavo,
  • Carlo Boselli,
  • Francesco Brucchi,
  • Paolo Bruzzone,
  • Diletta Cassini,
  • Isaac Cheruiyot,
  • Bruno Cirillo,
  • Federico Coccolini,
  • Mario Corona,
  • Piero Covarelli,
  • Valerio Cozza,
  • Daniele Crocetti,
  • Justin Davies,
  • Gunjan Desai,
  • Saurabh Dixit,
  • Alessandro Spizzirri,
  • Vincenzo Napolitano,
  • Daniele Giuliani,
  • Alessio Giordano,
  • Akinfemi Akingboye,
  • Weihua Gong,
  • Salvatore Guarino,
  • Ahmed H. I. Helmy,
  • Sara Lauricella,
  • Augusto Lauro,
  • Gianluca Mascianà,
  • Matteo Matteucci,
  • Alessandra Panarese,
  • Mauro Podda,
  • Georgi Popivanov,
  • Paolo Prosperi,
  • Camilo Ramírez-Giraldo,
  • Dario Tartaglia,
  • Jacopo Tesei,
  • Luca Tomassini,
  • Samuele Vaccari,
  • Vipul D. Yagnik,
  • Xiaonan Xiang,
  • Mauro Zago,
  • Giuseppe Nigri,
  • Enrico Fiori,
  • Antonia Rizzuto,
  • Paolo Sapienza,
  • Andrea Mingoli,
  • Vito D’Andrea,
  • Antonio Pesce

摘要

Background

Appendiceal abscesses are a heterogeneous manifestation of acute appendicitis, with diverse pathological substrates and imaging phenotypes. The lack of standardized definitions hampers cross-study comparability and consistent diagnostic pathways.

Methods

The Italian Society of Surgical Research (SIRC) and the Italian Society of Emergency Surgery and Trauma (SICUT) conducted a four-round modified Delphi, culminating in an in-person consensus conference (Rome, November 6, 2025). A multidisciplinary panel refined the statements on pathological definitions, classifications, and imaging correlates.

Results

Consensus was reached on 22 statements. Part 1 reports seven statements that delineate the spectrum from uncomplicated to complicated appendicitis (phlegmonous, gangrenous, and perforated) and distinguishes appendiceal abscesses from appendiceal masses. An imaging framework centered on CT descriptors was used to support consistent radiology–pathology correlations.

Conclusions

These statements provide a unified taxonomy and diagnostic framework for appendiceal abscesses and related entities, improving interdisciplinary communication, and enabling cross-study comparability.