
Adult T-cell leukemia/lymphoma is a rare and very aggressive T-cell neoplasm with an extremely poor prognosis. It is also the only human cancer caused by a retrovirus—human T-cell leukemia virus.

Adult T-cell leukemia/lymphoma is a rare and very aggressive T-cell neoplasm with an extremely poor prognosis. It is also the only human cancer caused by a retrovirus—human T-cell leukemia virus.