Fig. 1From: Long-term outcomes and recurrence pattern of 18F-FDG PET-CT complete metabolic response in the first-line treatment of metastatic colorectal cancer: a lesion-based and patient-based analysisDiscordance between PERCIST and RECIST criteria in a 66-year-old male patient with kras wild-type T4N1M1 recto-sigmoid adenocarcinoma. Top row: PET and CT images performed at baseline after surgical resection of the primary tumor. a Maximum-intensity-projection (MIP) image shows a hypermetabolic mass in segment V/VIII of the liver (blue arrow 1). b Corresponding contrast enhanced CT image confirming the presence of a liver metastasis (white arrow 2). Bottom row: PET and CT images after 10Â cycles of XELOX and cetuximab. c MIP image shows CMR compared to (d) CT image demonstrates a residual lesion (white arrow 3). The patient was considered to have partial response to treatment by RECIST criteria. The patient was considered to have progressive metabolic disease after 5Â months of complete metabolic responseBack to article page