Using GEPIA, we found that low RCSD1 expression was associated with poor OS in HNSC (Head and Neck squamous cell carcinoma), KIRC, THYM, LUAD, SARC (Sarcoma), and SKCM (Figures 2A–F); low RCSD1 expression in both LGG (Brain Lower Grade Glioma) and UVM (Uveal Melanoma) was associated with better OS (Figures 2G, H). The gene discussed is RCSD1; the disease is sarcoma.