Anatomy clarification. The article “Renal Cell Carcinoma: Diagnosis and Management” (February 1, 2019, p. 179) incorrectly identified the right testicular venous system as draining to the right renal vein rather than the inferior vena cava in the third sentence of the “Clinical Presentation” section (page 180). The sentence should have read: “Nonreducing or isolated right-sided varicocele and bilateral lower extremity edema can also be symptoms of advanced disease through occlusion of the right testicular venous system that drains directly to the inferior vena cava.” The online version of the article has been corrected.