Case Report: Early diagnostic precision matters: navigating therapeutic uncertainty in pediatric BPDCN illustrated by misdiagnosis sequelae and fleeting CAR-T response - Chen, XiaoYan; Wang, JiaYi; Hao, WenGe; Qu, YuHua; Wang, Xiaojing; Jiang, Hua; Zhang, WeiNa (Frontiers in Pediatrics, 2026)