Survival outcomes according to organ involvement at diagnosis. (A) OS of the entire cohort (N = 54). (B) OS according to organ involvement at diagnosis (n = 48). (C) PFS (n = 43) according to organ involvement at diagnosis (test excludes patients with incomplete staging). OS and PFS were compared between groups by using a log-rank test. All P values reported are 2-sided and considered significant if <.05.