Treatment of benign orbital pseudolymphomas with the monoclonal anti-CD20 antibody rituximab

Thomas E. Witzig, David J. Inwards, Thomas M. Habermann, Ahmet Dogan, Paul J. Kurtin, John B. Gross, Anuradha Ananthamurthy, Kay M. Ristow, James A. Garrity

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Abstract

OBJECTIVE: To report the results of treating patients with orbital pseudolymphomas with the anti-CD20 monoclonal antibody rituximab. PATIENTS AND METHODS: Patients were included in the study if they had an orbital mass and biopsy-proven orbital pseudolymphomas between January 1, 1998, and December 31, 2005. The study focused on patients treated with rituximab. RESULTS: Ninety-eight patients were evaluated, and the biopsy results revealed malignant non-Hodgkin lymphoma in 72 (73%); the other 26 (27%) had a pseudolymphoma. Eleven (42%) of the 26 patients with a pseudolymphoma were treated with rituximab, 375 mg/m2, intravenously each week for 4 doses, and 10 (91%) of the 11 responded. Seven patients were either treated with maintenance rituximab or successfully retreated with rituximab after relapse. None of the 10 responders has become refractory to rituximab. CONCLUSION: Benign lymphoproliferative tumors are responsive to monoclonal antibody therapy targeted to B lymphocytes. Rituximab should be considered a treatment option for orbital pseudolymphomas.

Original languageEnglish (US)
Pages (from-to)692-699
Number of pages8
JournalMayo Clinic proceedings
Volume82
Issue number6
DOIs
StatePublished - Jun 2007

ASJC Scopus subject areas

  • Medicine(all)

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    Witzig, T. E., Inwards, D. J., Habermann, T. M., Dogan, A., Kurtin, P. J., Gross, J. B., Ananthamurthy, A., Ristow, K. M., & Garrity, J. A. (2007). Treatment of benign orbital pseudolymphomas with the monoclonal anti-CD20 antibody rituximab. Mayo Clinic proceedings, 82(6), 692-699. https://doi.org/10.4065/82.6.692