Adrenal lesions: Common findings and pitfalls on 18F-FDG PET/CT

Document Type : Review Article

Authors

Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Adrenal lesions are commonly observed during 18F-FDG PET/CT studies. Although, most of these lesions are considered benign, an important consideration in oncologic patients is metastasis. Benign lesions, such as adenomas usually present with low 18F-FDG uptake, although overlap with malignant lesions exist and clear SUV cut-off for distinguishing adrenal adenomas has not been established. Different criteria have been proposed to further characterize adrenal lesions, as benign or metastatic. Conventional imaging modalities have additional value when the degree of uptake is equivocal. In this review, we go through some of the common adrenal lesions, as well as discerning features that favor either benign or malignant etiology.

Keywords

Main Subjects

References

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