These included a uterine leiomyosarcoma with original PD-L1 expression of 1%, which increased to 90% in its lung metastasis (Fig 3A, 3B, 3C and 3D), a pleomorphic rhabdomyosarcoma from the spermatic cord with increase from 40% to 80% in the brain metastasis (Fig 3I, 3J, 3K and 3L) and a high-grade MFS with increase from 5% to 70% in the recurrence (Fig 3E, 3G and 3H). This evidence concerns the gene CD274 and rhabdomyosarcoma.