BCR:ABL1‐positive histiocytic sarcoma of the small intestine in a patient with chronic myeloid leukaemia. Issue 5 (24th November 2021) - Minato, Hiroshi; Okayama, Yurie; Katayanagi, Kazuyoshi; Futatsuya, Chizuru; Kurumaya, Hiroshi; Sakimura, Yusuke; Yamamoto, Daisuke; Bando, Hiroyuki; Yamaguchi, Masaki; Ito, Masafumi