REVISTA MEDICA DE COSTA RICA Y CENTROAMERICA LXXI (610) 333 - 338, 2014 ONCOLOGIA Linfoma No Hodgkin Difuso de CElulas Grandes B Diana Isabel Quintero Ordoñez* suMMARY Background: Malignant neoplasms of lymphoid tissue cell lines emerge from the immune system in various states of differentiation...