18F-FDG uptake by rectal cancer is similar in mucinous and nonmucinous histological subtypes

PET/CT has been considered limited for the evaluation of mucinous colorectal tumors due to low 18F-FDG uptake. The aim of our study was to compare PET/CT variables in mucinous (MC) and nonmucinous (NMC) rectal adenocarcinomas. Consecutive patients with cT2-4N0-2M0 rectal cancer included in a prospective clinical trial were reviewed. PET/CT was performed for primary baseline staging. Visual and quantitative analysis included SUVmax and SUVmean,...