CJCP     2004 6 (2):  125-127    ISSN: 1008-8830  CN: 43-1301/R A diff icult and compl icated case study :primary extra nodal lymphoma of bo ZHENG Xiang-Rong, YIN Fei, QI Bo-Xiang Department of Pediat rics , Xiangya Hospital , Cent ral South University , Changsha 410008 , China Received: null  Revised: null  Online: null Supporting info