Histiocytic sarcoma arising in a child affected by Burkitt lymphoma, with t(8;14)(q24;q32) positivity in both tumors. (2nd January 2021) - d'Amore, Emanuele S.G; Mainardi, Chiara; Mussolin, Lara; Carraro, Elisa; Alaggio, Rita; Lazzari, Elena; Fusetti, Stefano; Ghirotto, Cristina; Marzollo, Antonio; Biddeci, Giada; Toffolutti, Tiziana; Massano, Davide; et al.