From: Prognostic factors in solitary plasmacytoma of the bone: a multicenter Rare Cancer Network study
All patients (n = 206) | Tumors ≥ 5 cm (n = 59) | |||
---|---|---|---|---|
Radiation dose (Gy) | Number of patients | Local relapse (%) | Number of patients | Local relapse (%) |
No RT** | 5 | 4 (80%) | 1 | 1 (100%) |
<30 | 25 | 2 (8%) | 2 | 0 |
≥ 30 – <40 | 55 | 5 (9%) | 17 | 3 (18%) |
≥ 40 – <50 | 65 | 8 (12%) | 15 | 3 (20%) |
≥ 50 | 56 | 8 (13%) | 24 | 4 (17%) |