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Congress: ECR26
Poster Number: C-12767
Type: Poster: EPOS Radiologist (educational)
Authorblock: J. Miguez Gonzalez, R. Oliveira Caiafa, P. Lozano Arranz, L. Pelegri Martinez, F. Calaf Forn, M. Valls Mellado, A. M. Herrera Pulido, L. I. Sarati Nieto, C. Pallàs Guardiola; Barcelona/ES
Disclosures:
Javier Miguez Gonzalez: Nothing to disclose
Rafael Oliveira Caiafa: Nothing to disclose
Pilar Lozano Arranz: Nothing to disclose
Laura Pelegri Martinez: Nothing to disclose
Francesc Calaf Forn: Nothing to disclose
Marc Valls Mellado: Nothing to disclose
Angélica María Herrera Pulido: Nothing to disclose
Lorena Ivonne Sarati Nieto: Nothing to disclose
Cristina Pallàs Guardiola: Nothing to disclose
Keywords: Interventional non-vascular, Oncology, Peritoneum, CT, Ultrasound, Biopsy, Cancer, Metastases, Multidisciplinary cancer care
Learning objectives To explain the technique, indications and usefulness of ultrasound (US)-guided omental biopsy in the diagnosis of peritoneal surface malignancies. [fig 1]
Read more Background Peritoneal surface malignancies represent a heterogeneous group of primary and secondary neoplasms, most commonly arising from metastatic carcinomas of gastrointestinal or ovarian origin that spread to the peritoneum. This peritoneal dissemination is known under the generic term of peritoneal carcinomatosis and its clinical presentation is insidious, so it may be an incidental finding in patients undergoing CT scans for non-specific symptoms, such as abdominal distension or mild abdominal pain.When dealing with peritoneal carcinomatosis of unknown origin, histological diagnosis is a...
Read more Findings and procedure details Omental biopsy in patients with suspected peritoneal carcinomatosis on CT and involvement of the greater omentum is a quick and safe method for achieving a definitive histological diagnosis, with reported diagnostic rates of around 95%.Ultrasound (US) is the technique of choice for guidance, as it offers several advantages over CT, such as real-time visualisation, real-time compression, lower cost and no radiation exposure. Procedure: [fig 2] [fig 3] 1. Prior to the procedure, a thorough review and correlation between abdominal US and CT images is recommended...
Read more Conclusion US-guided omental biopsy is a feasible, safe and cost-effective procedure for histological diagnosis in patients with peritoneal carcinomatosis of unknown origin that present omental involvement on CT. Therefore, we believe it should be considered a standard of care in dedicated oncological centres. [fig 11]  
Read more Personal information Javier Miguez GonzálezDepartment of Radiology, Complex Hospitalari Universitari Moisès Broggi, Universitat de Barcelona (UB), Barcelona (Spain)https://orcid.org/0000-0002-1928-9778
Read more References 1. Perez AA, Lubner MG, Pickhardt PJ. “Ultrasound-Guided Omental Biopsy: Diagnostic Yield and Association With CT Features Based on a Single-Institution 18-Year Series.” AJR Am J Roentgenol. 2021 Oct;217(4):898-906. 2. Ristagno R. "Editorial Comment: Ultrasound-Guided Omental Biopsy-A Worthy Approach (continued)". AJR Am J Roentgenol. 2021 Oct;217(4):906-907. 3. Hill DK, Schmit GD, Moynagh MR, Kurup AN, Schmitz JJ, Atwell TD. “Percutaneous omental biopsy: efficacy and complications.” Abdom Radiol (NY) 2017;42:1566–15704. Souza FF, Mortelé KJ, Cibas ES, Erturk SM, Silverman SG. “Predictive value of...
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