@article{3207424,
    title = "Granuloma Mimicking Local Recurrence on PET/CT after Liver Resection of Colorectal Liver Metastasis: A Case Report.",
    author = "Pantiora, Eirini V. and Kontis, Elissaios A. and Michalaki, Vasiliki and Primetis, Elias and Vezakis, Antonios and Polydorou, Andreas and Fragulidis, Georgios P.",
    journal = "CUREUS",
    year = "2016",
    volume = "8",
    number = "8",
    pages = "e717",
    doi = "10.7759/cureus.717",
    keywords = "PET/CT, colorectal cancer, fdg-pet, granuloma, liver metastases, metastasectomy",
    abstract = "Positron emission tomography-computed tomography (PET/CT) improves the diagnostic interpretation of fluorine-18 fluorodeoxyglucose (18F-FDG ) PET and CT in oncologic  patients and has an impact on both diagnostic and therapeutic aspects of patient  management. However, false positive findings from the PET/CT imaging should be taken  into consideration as they mislead physicians into improper therapeutic actions. We  present a 48-year-old female patient with a history of left colectomy for colorectal  cancer and subsequent liver metastasectomy. After one year of follow-up, she  presented with a highly suspicious lesion in the liver, which was confirmed on  PET/CT as a metastatic liver tumor. Consequently, the patient underwent surgical  excision of the tumor, and the definitive histological diagnosis showed a  granulomatous tissue with giant cells and foreign body tissue reaction. Based on  this report, we briefly review the dangerous pitfalls from radiological and PET/CT  imaging concerning the preoperative diagnostic workup examination, as they may  significantly alter the treatment plan in oncologic patients."
}