1. Eligible diseases: CD7 positive relapsed or refractory Leukemia and Lymphoma. ￚ Acute myeloid leukemia, previously identified as CD7+ ￚ Precursor T lymphoblast leukemia/lymphoma ￚ T-cell prolymphocytic leukemia ￚ T-cell large granular lymphocytic leukemia ￚ Peripheral T-cell lymphoma, NOS ￚ Angioimmunoblastic T-cell lymphoma ￚ Extranodal NK/T-cell lymphoma, nasal type ￚ Enteropathy-type intestinal T-cell lymphoma ￚ Hepatosplenic T-cell lymphoma