T-cell rich B-cell lymphoma masquerading as Hodgkin disease: excellent outcome to inadequate therapy.

T-cell rich B-cell lymphomas (TCRBCL) are characterized as non-Hodgkin lymphomas with a minor population of malignant B-cells scattered among predominant, reactive T-lymphocytes. This entity can easily be confused with lymphocyte-predominant Hodgkin disease (HD-LP), resulting in inappropriate therapy and a poor outcome. Because of their similarity, the pathology of patients treated for HD-LP with an inadequate or short-lived response to therapy should always be reviewed by an expert hematopathologist. We describe the first reported patient in Puerto Rico with TCRBCL, originally diagnosed and treated as HD-LP. Although the patient received partial, substandard therapy for TCRBCL, an excellent prolonged complete response ensued, thus, giving further credence to the fact that malignant lymphomas and TCRBCL in particular, are a protean group of disorders which should be precisely and accurately classified before the proper therapeutic strategies can be outlined