Liang H, et al. - Investigators assessed 158 individuals to evaluate the impact of en bloc resection on the identification of muscularis mucosae (MM) in non-muscle invasive bladder cancer (NMIBC). They obtained 70 specimens through TURBt with a plasma kinetic loop and 88 through front-firing potassium-titanyl-phosphate (KTP) green-light laser en bloc resection. They found an association of KTP laser resection method with the presence of MM in specimens on multivariable logistic regression analysis. They also noticed a higher presence of MM in tumors of smaller sizes, which could also be en bloc resected with TURBt (eg, ≤1 cm). They concluded the improvement in accurate identification of the T1 substage, since en bloc resection increased the identification rate of MM.