1.Hepatic angiomyolipoma with minimal fat, mimicking hepatocellular carcinoma.
So Jung LEE ; So Yeon KIM ; Kyoung Won KIM ; Yong Moon SHIN ; Hyoung Jung KIM ; Jong Seok LEE ; Sun A KIM
Clinical and Molecular Hepatology 2012;18(3):330-335
No abstract available.
Adult
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Angiomyolipoma/pathology/*radiography/radionuclide imaging
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Carcinoma, Hepatocellular/pathology/radiography/radionuclide imaging
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Female
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Humans
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Immunohistochemistry
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Liver Function Tests
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Liver Neoplasms/pathology/radiography/radionuclide imaging
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Magnetic Resonance Imaging
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Positron-Emission Tomography
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Tomography, X-Ray Computed
2.FDG PET or PET/CT in Evaluation of Renal Angiomyolipoma.
Chun Yi LIN ; Hui Yi CHEN ; Hueisch Jy DING ; Kuo Yang YEN ; Chia Hung KAO
Korean Journal of Radiology 2013;14(2):337-342
OBJECTIVE: Angiomyolipoma is the most common benign kidney tumor. However, literature describing FDG PET findings on renal angiomyolipoma (AML) is limited. This study reports the FDG PET and PET/CT findings of 21 cases of renal AML. MATERIALS AND METHODS: The study reviews FDG PET and PET/CT images of 21 patients diagnosed with renal AML. The diagnosis is based on the classical appearance of an AML on CT scan with active surveillance for 6 months. The study is focused on the observation of clinical and radiographic features. RESULTS: Six men and 15 women were included in our study. The mean age of the patients was 57.14 +/- 9.67 years old. The mean diameter of 21 renal AML on CT scans was 1.76 +/- 1.00 cm (Min: 0.6 cm; Max: 4.4 cm). CT scans illustrated renal masses typical of AMLs, and the corresponding FDG PET scans showed minimal FDG activities in the area of the tumors. None of the 21 AMLs showed a maximum standardized uptake value (SUVmax) greater than 1.98. No statistically significant correlation was present between SUVmax and tumor size. CONCLUSION: Renal AMLs demonstrate very low to low uptake on FDG PET and PET/CT imaging in this study. When a fat-containing tumor in the kidney is found on a CT scan, it is critical to differentiate an AML from a malignant tumor including an RCC, liposarcoma, and Wilms tumor. This study suggests that FDG PET or PET/CT imaging is useful for differentiating a renal AML from a fat-containing malignant tumor.
Angiomyolipoma/*radionuclide imaging
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Contrast Media/diagnostic use
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Ehlers-Danlos Syndrome
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Female
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Fluorodeoxyglucose F18/diagnostic use
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Humans
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Kidney Neoplasms/*radionuclide imaging
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Male
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Middle Aged
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*Positron-Emission Tomography
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*Positron-Emission Tomography and Computed Tomography
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Radiopharmaceuticals/diagnostic use
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Retrospective Studies