Kocher NJ, et al. - A scrutiny was conducted of the correlation between sarcopenia and sarcopenic obesity on clinical, perioperative, and oncologic outcomes in patients with upper-tract urothelial carcinoma (UTUC) undergoing radical nephroureterectomy (RNU). Herein, the link between nonmodifiable risk factors with sarcopenia and disease relapse with sarcopenic obesity was underscored. Validation of the yielded results warranted prospective trials.