Yumi Arai, Yasuo Yazawa, Tomoaki Torigoe, Jungo Imanishi, Toru Motoi, Masanori Yasuda, Ryuhei Tanaka, Takashi Fukushima, Atsuko Watanabe, Atsuhiko Ohta, Yuki Shimizu, Yuho Kadono, Kazuo Saita
BACKGROUND BCOR: CCNB3 sarcoma is a rare mesenchymal tumor that was formerly included in the undifferentiated/unclassified sarcoma group and was recently reclassified as one of undifferentiated small round cell sarcomas with a genetically distinct subtype in the WHO 2020 classification. Because of its rarity, still not much is known, especially about its clinical features. CASE REPORT A 15-year-old boy presented with almost 1-year intermittent thigh pain. On the first visit, a pathologic fracture of the femur and a big mass expanding through the femoral cortex with lobular shape and homogenous appearance were recognized on radiography and magnetic resonance imaging...
March 14, 2023: American Journal of Case Reports