How I treat nodular lymphocyte predominant Hodgkin lymphoma.

Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is an uncommon entity that, in contrast to classical Hodgkin lymphoma (cHL), universally expresses CD20, a hallmark of the disease. The majority of the patients present with early-stage disease, and treatment with local radiation provides excellent disease control and overall survival (OS). For locally extensive or advanced stages, paradigms used for cHL have been employed, with similar outcomes. Unlike cHL, late relapses may occur, as well as a propensity to transform to an aggressive B-cell non-Hodgkin lymphoma that underscores the importance of long-term follow-up and rebiopsy at the time of relapse. Deaths caused by NLPHL are uncommon, and in older series, secondary malignancies and other treatment-related toxicities contributed appreciably to overall mortality. Expression of CD20 in NLPHL has led to the evaluation of rituximab as a therapeutic option. Although results with single-agent rituximab in the front-line setting are inferior to conventional therapy, rituximab is a reasonable choice for relapsed disease because of the high overall response rate and excellent tolerability. Most patients have a long OS; therefore, overall goals of therapy should be to minimize the risk for relapse and long-term toxicity.