PET/MRI Characterization of Mucinous Versus Nonmucinous Components of Rectal Adenocarcinoma: A Comparison of Tumor Metabolism and Cellularity
Marcelo A. Queiroz, A. Sánchez Naves, Priscilla R. Dreyer, Giovanni Guido Cerri, Carlos Alberto Buchpiguel
Abstract
PET/MRI can be used to differentiate the mucinous and nonmucinous components within primary rectal adenocarcinoma on the basis of metabolic status. The FDG uptake is significantly lower in the mucinous component, but tumor cellularity based on MRI and DWI findings is not. Despite being associated with a higher T category in the sample of patients in this study, the presence of a mucinous component seems not to be associated with increased risk of synchronous metastases.
Topics & Concepts
MedicineAdenocarcinomaColorectal adenocarcinomaNuclear medicinePathologyRadiologyInternal medicineCancerRadiomics and Machine Learning in Medical ImagingColorectal Cancer Surgical TreatmentsGastric Cancer Management and Outcomes