L-asparaginase induced complete remission in Epstein-Barr virus positive, multidrug resistant, cutaneous T-cell lymphoma.

A 30-year-old man was admitted to our hospital with subcutaneous tumors and a high fever. Based on biomicroscopic findings of the tumor, the patient was diagnosed as having diffuse, medium, well-differentiated malignant lymphoma. Immunochemical analysis showed that CD3, CD4, CD25, and TCR beta were positive, and in situ hybridization revealed Epstein-Barr virus-encoded small RNAs in the nuclei of the lymphoma cells. Despite the patient's resistance to multidrug therapy, complete remission was achieved using L-asparaginase. This case is unique because of its peculiar clinical course and a possible association with the Epstein-Barr virus. L-asparaginase may be an important treatment in other patients who exhibit some of these characteristics.