TY - JOUR TI - Granuloma Mimicking Local Recurrence on PET/CT after Liver Resection of Colorectal Liver Metastasis: A Case Report. AU - Pantiora, Eirini V. AU - Kontis, Elissaios A. AU - Michalaki, Vasiliki AU - Primetis, Elias AU - Vezakis, Antonios AU - Polydorou, Andreas AU - Fragulidis, Georgios P. JO - CUREUS PY - 2016 VL - 8 TODO - 8 SP - e717 PB - SN - null TODO - 10.7759/cureus.717 TODO - PET/CT, colorectal cancer, fdg-pet, granuloma, liver metastases, metastasectomy TODO - 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. ER -