We herein present a case of a 2-year-old girl with non-Hodgkin's lymphoma(NHL) of the lymphoblastic type involving cutaneous sites at the time of diagnosis. The histological finding was typical of lymphoblastic lymphoma. However, immunophenotypically, this lymphoma was not of the T-cell or B-cell type, although the vast majority of lymphoblastic lymphomas involving the skin are usually of the pre-B cell or T-ce11 type. Until now, there have been few reports of non-T, non-B primary cutaneous lymphoblastic lymphoma expressing surface CD10 and CD56 antigens as in this case.