Refractory Burkitt Lymphoma

Brain neoplasm resistant to treatment.

B-cell non-Hodgkin lymphoma that is resistant to treatment.

B-lymphoblastic lymphoma resistant to treatment.

Angioimmunoblastic T-cell lymphoma resistant to treatment.

A myelodysplastic syndrome characterized by an anemia in which 15% or more of the erythroid precursors are ringed sideroblasts. The ring…

A provisional entity that encompasses cases with morphologic and clinical characteristics of refractory anemia with ring sideroblasts, marked thrombocytosis, and abnormal…