The clinical features, management and prognosis of primary and secondary indolent lymphoma of the bone: A retrospective study of the international extranodal lymphoma study group (IELSG #14 study)

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Govi, S., Christie, D., Messina, C., Bruno Ventre, M., Gracia Medina, E. A., Porter, D., Radford, J., Heo, D., Park, Y., Martinelli, G., Taylor, E., Lucraft, H., Ballova, V., Zucca, E., Gospodarowicz, M., & Ferreri, A. J. M. (2014). The clinical features, management and prognostic effects of pathological fractures in a multicenter series of 373 patients with diffuse large B-cell lymphoma of the bone. Annals of Oncology, 25(1), 176-181.

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© Copyright, The Auhthors, 2014

2014 HERDC Submission




Background: Pathological fractures (PFs) occur in 10%-20% of patients with diffuse large B-cell lymphoma (DLBCL) of the bone. The clinical features and the effects of this severe complication on management and prognosis have not been previously analyzed in a large series. Patients and methods: The effects of PF on management and prognosis were reviewed in an international retrospective series of 373 patients with newly diagnosed bone DLBCL, comparing 78 patients with PF at presentation (group 'PF-BL') and 295 patients without PF ('controls').Results: At a median follow-up of 53 months (range 3-246), PF-BL patients exhibited lower rates of overall response (ORR, 78%versus 85%; P = 0.17), 5-year progression-free survival (PFS, 53 ± 6% versus 61 ± 3%; P = 0.02) and 5-year overall survival (OS, 54 ± 6% versus 68 ± 3%, P = 0.008) than controls. Initial surgical stabilization of the PF did not change therapeutic outcome (5-year OS: 45 ± 9% versus 54 ± 10%; P = 0.20). PF-BL patients referred to irradiation of the fractured bone before chemotherapy exhibited a significantly poorer outcome than patients managed with the inverse sequence (ORR: 52% versus 92%, P = 0.0005; 5-year OS: 22 ± 14% versus 64 ± 9%, P = 0.007). Multivariate analysis confirmed the independent association between PF and worse survival and the negative effect of radiotherapy as initial therapy. Conclusion: Fracture is an independent, adverse prognostic event in patients with bone DLBCL. Anthracycline-based chemotherapy followed by radiotherapy seems to be the better treatment sequence. Initial fracture stabilization does not seem to improve outcome; it should be used to improve patient's quality of life only if chemotherapy delays can be avoided.

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