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C-0778 - Multimodality Imaging Evaluation of Incidental Breast Lesions Detected on Positron emission tomography/computed tomography (PET/CT) 

J. Kim, S. Kim, D. Lee, J. Lee, S. Lee; Cheonan/KR Type: Educational Exhibit
Area of Interest: Breast
Imaging Techniques: PET-CT, MR, Ultrasound
Procedure: Biopsy
Special Focus: Cancer
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Learning objectives: Ultrasonography (US) is the primary important modality in making a diagnosis of breast lesions. Today, PET/CT is increasingly being used in work up of most types of malignancy, and incidentally detected additional lesions are being increased. On the other hand, it cannot help making false positive/n[...]

Background: Introduction 1. FDG (18F fluorodeoxyglucose) PET/CT Imaging technique for quantification of radioactivity in vivo by using radiopharmaceuticals labeled with positron emitting radionuclide Detect abnormal metabolic activity before any anatomic changes occurs It is useful, especially in follow-up o[...]

Findings and procedure details: Malignant lesion FDG PET/CT in malignant breast lesions The role of FDG PET/CT in the detection of primary breast cancer and differentiation of malignancy from benign disease. Diagnostic performance : sensitivity (80~96%), specificity (83~100%) Cut-off for discriminating benign lesions from malig[...]

Conclusion: Understand advantages and pitfalls of PET/CT will help to perform accurate diagnosis of incidental breast lesions. Thus, we emphasize that combination of other radiologic modalities including US, mammography and MRI are necessary.

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References: EubankWB, Mankoff DA, Schmiedl UP, et al. Imaging of oncologic patients: benefit of combined CT and FDG PET in the diagnosis of malignancy. AJR Am J Roentgenol1998; 171(4): 1103–1110 TatsumiM, Cohade C, Mourtzikos KA, Fishman EK, Wahl RL. Initial experience with FDG-PET/CT in the evaluation of [...]

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