Concomitant presentation of acute myeloid leukemia with T-cell large granular lymphocytic leukemia

T-cell large granular lymphocyte leukemia (T-LGL) also known as T-cell chronic lymphocytic leukemia is rare and comprises a small minority of all small lymphocytic leukemias. The concomitant presentation of T-LGL with acute myeloid leukemia (AML) has not been previously reported. We present an elderly gentleman with concomitant T-LGL and AML (non-M3) diagnosed by a combination of morphologic evaluation, immunophenotyping by flow cytometry, and T-cell gene rearrangement studies. The patient was managed with combination AML chemotherapy. He remains alive and well seven months after initial diagnosis. A brief review of literature is also presented.