Abstract
FDG PET/CT, an established imaging modality for staging and restaging workup of malignancies, also demonstrates increased uptake in infectious or inflammatory conditions, including both infectious and noninfectious granulomatous processes. A 65-year-old man with a history of hepatocellular carcinoma status post-wedge resection and chemoembolization of the primary tumor referred for evaluation of extrahepatic metastases for determining the surgical eligibility for a liver transplantation. The patient underwent FDG PET/CT imaging associated with a separately acquired contrast enhanced CT (CECT) of the chest, abdomen, and pelvis. FDG PET/CT imaging revealed multiple FDG-avid pulmonary nodules that were subsequently confirmed to represent Mycobacterium avium intracellular infection on histology.
MeSH terms
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Aged
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Biopsy
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Carcinoma, Hepatocellular / complications
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Carcinoma, Hepatocellular / drug therapy
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Carcinoma, Hepatocellular / pathology*
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Carcinoma, Hepatocellular / surgery
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Contraindications
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Diagnosis, Differential
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Eligibility Determination
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Fluorodeoxyglucose F18
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Granuloma, Respiratory Tract / etiology
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Humans
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Immune Tolerance
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Liver Neoplasms / complications
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Liver Neoplasms / drug therapy
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Liver Neoplasms / pathology*
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Liver Neoplasms / surgery
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Liver Transplantation* / pathology
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Lung Neoplasms / complications
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Lung Neoplasms / diagnosis*
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Lung Neoplasms / secondary*
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Male
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Mycobacterium avium Complex / immunology
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Mycobacterium avium-intracellulare Infection / complications
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Mycobacterium avium-intracellulare Infection / diagnosis
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Mycobacterium avium-intracellulare Infection / pathology
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Neoplasm Staging
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Positron-Emission Tomography*
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Radiopharmaceuticals
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Tomography, X-Ray Computed*
Substances
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Radiopharmaceuticals
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Fluorodeoxyglucose F18