Overview of F18-FDG uptake patterns in retroperitoneal pathologies: imaging findings, pitfalls, and artifacts

Authors

Priya Pathak, Abdominal Imaging and Nuclear Medicine Divisions, Department of Radiology, University of Minnesota, 420 Delaware St SE, Minneapolis, MN, 55455, USA. ppathak@umn.edu.
Laith Abandeh, Department of Radiology, University of Washington, Seattle, WA, USA.
Hassan Aboughalia, Department of Radiology, Children's National Hospital, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
Atefe Pooyan, Department of Radiology, University of Washington, Seattle, WA, USA.
Bahar Mansoori, Abdominal Imaging Division, Department of Radiology, University of Washington, Seattle, WA, USA.

Document Type

Journal Article

Publication Date

5-1-2024

Journal

Abdominal radiology (New York)

Volume

49

Issue

5

DOI

10.1007/s00261-023-04139-x

Keywords

F18-FDG PET/CT; Oncology; Retroperitoneal masses; Retroperitoneal pathologies

Abstract

INTRODUCTION: Retroperitoneum can be the origin of a wide variety of pathologic conditions and potential space for disease spread to other compartments of the abdomen and pelvis. Computed tomography (CT) and magnetic resonance imaging (MRI) are often the initial imaging modalities to evaluate the retroperitoneal pathologies, however given the intrinsic limitations, F18-FDG PET/CT provides additional valuable metabolic information which can change the patient management and clinical outcomes. We highlight the features of retroperitoneal pathologies on F18-FDG PET/CT and the commonly encountered imaging artifacts and pitfalls. The aim of this review is to characterize primary and secondary retroperitoneal pathologies based on their metabolic features, and correlate PET findings with anatomic imaging. CONCLUSION: Retroperitoneal pathologies can be complex, ranging from oncologic to a spectrum of non-oncologic disorders. While crosse-sectional imaging (CT and MRI) are often the initial imaging modalities to localize and characterize pathologies, metabolic information provided by F18-FDG PET/CT can change the management and clinical outcome in many cases.

APA Citation

Pathak, Priya; Abandeh, Laith; Aboughalia, Hassan; Pooyan, Atefe; and Mansoori, Bahar, "Overview of F18-FDG uptake patterns in retroperitoneal pathologies: imaging findings, pitfalls, and artifacts" (2024). GW Authored Works. Paper 5002.
https://hsrc.himmelfarb.gwu.edu/gwhpubs/5002

Department

Radiology