Simultaneous occurrence of large B-cell non-Hodgkin lymphoma and myelodysplastic syndrome rapidly evolving into acute myeloblastic leukemia

Philadelphia chromosome with acute myeloid leukemia and concurrent large B cell lymphoma of different origins: A case report

Philadelphia chromosome with de novo acute myeloid leukemia (Ph + AML) arising from t(9;22) is an uncommon occurrence. Ph + AML is known to respond poorly to conventional chemotherapy. To the best of our knowledge, simultaneous diagnosis of de novo Ph + AML and lymphoma in a single patient has not yet been reported. The present study reports the case of a 37-year-old female patient who presented with bone pain, fever and lymphadenopathy, and was diagnosed as Ph + AML with concurrent diffuse large B cell lymphoma. Combined chemotherapy regimen covering AML and lymphoma was administered, achieving short-term response. However, the therapy soon failed and the patient succumbed to the disease. The present study reports the first case of Ph + AML occurring concurrently with diffuse large B cell lymphoma, and discusses certain differences between Ph + AML and chronic myelogenous leukemia in the myeloid blast crisis phase, as well as the appropriate therapeutic modalities for Ph + AML. In addition, the potential association between Ph + AML and diffuse large B cell lymphoma in this patient was investigated.

Simultaneous occurrence of large B-cell non-Hodgkin lymphoma and acute myeloid leukaemia in an elderly patient: complete remissions of both diseases by rituximab-bendamustine regimen combined to hypomethylating therapy

The case of an elderly and frail patient affected by simultaneous large B-cell non-Hodgkin lymphoma and acute myeloid leukaemia is reported. The complete remissions of both diseases by azacitidine and rituximab-bendamustine regimen were achieved.

Molecular remission following high-dose hydroxyurea and fludarabine plus cytarabine in a patient with simultaneous acute myeloid leukemia and low-grade lymphoma

The occurrence of acute myeloid leukemia (AML) as a secondary tumor has been frequently reported in patients who received various chemotherapy regimens for hematologic malignancies wile the concomitant development of chronic lymphoproliferative diseases (CLD) and AML in previously untreated patients is extremely rare. We report a case with an apparently spontaneous occurrence of AML and non Hodgkin low-grade lymphoma diagnosed by immunological, cytogenetical and molecular analyses. In particular genetic studies allowed to identify the coexistence of a clonal lymphoid population and a myeloid blast component characterized by inv(16) marker and CBFbeta-MYH11 gene fusion. Complete remission of AML and the CLD was obtained following high doses of hydroxyurea and two consolidation cycles of fludarabine plus intermediate dose cytarabine.