Annals of Oncology Advance Access published online on January 11, 2007
Annals of Oncology, doi:10.1093/annonc/mdl468
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© 2007 European Society for Medical Oncology
Role of radiation therapy in the treatment of stage I/II mucosa-associated lymphoid tissue lymphoma
1 Harvard Radiation Oncology Program, Boston, MA
2 Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA
3 Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA
4 Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
* Correspondence to: Dr P. M. Mauch, 75 Francis Street, Boston, MA 02115, USA. Tel: +1-617-732-6310; Fax: +1-617-732-7347; E-mail: pmauch{at}Iroc.harvard.edu
Background: Few large studies exist on the outcome of patients treated for stage I/II mucosa-associated lymphoid tissue (MALT) lymphoma.
Patients and methods: We retrospectively reviewed the records of 77 patients consecutively treated for stage I (n = 66) or II (n = 11) MALT lymphoma at our institution. Progression-free survival (PFS), freedom from treatment failure (FFTF), and overall survival (OS) were calculated using the KaplanMeier method.
Results: The median follow-up time was 61 months (range 2177 months). Fifty-two patients (68%) received local radiation therapy (RT) alone, 17 (22%) had surgery followed by adjuvant RT, five (6%) had surgery alone, two (3%) had surgery and chemotherapy, and one patient had chemotherapy alone. The median RT dose was 30 Gy (range 1840 Gy). The 5-year PFS, FFTF, and OS rates were 76%, 78%, and 91%, respectively. The 5-year PFS (79% versus 50%; P = 0.002) and FFTF (81% versus 50%; P = 0.0004) rates were higher for patients who received RT as compared with patients who did not.
Conclusions: The prognosis following treatment of stage I/II MALT lymphoma is excellent. RT improves PFS and FFTF and has an important role in the curative treatment of patients with localized disease.
chemotherapy, MALT lymphoma, outcomeradiotherapy, surgery