Table 1. Rare Cancer Network studies of breast cancers.

Breast	Author	Year	Cases	Results
Boost radiotherapy in young women with DCIS	Omlin1	2006	373	Local relapse free survival at 10 years: 46% w/ no RT, 72% w/ RT no boost, 86% w/ RT+boost
Outcome and prognostic factors in breast sarcoma	Bousquet2	2007	103	5 year survival: disease free-44, over all- 55%. favorable prognostic factors in multivariate for LC: no residual tumor, no cellular pleomorphism, and non angiosarcoma histo. For DFS, non menopausal status, no residual tumor after tx, non-angio histo, absence of tumor necrosis and lower grade
Phyllodes tumor of the breast	Belkacemi3	2008	443	Benign tumors have good prognosis after surgery alone. For malignant and borderline group, RT decreased LR and total mastectomy had better results than conservational surgery
Management of adenoid cystic carcinoma of the breast	Khanfir4	2011	61	For conservation group, RT improved 5-year LRC to 95% from 83%
Primary breast lymphoma: patient profile, outcome, prognostic factors	Jeanneret-Sozzi5	2008	84	5yr survival: overall-53%, lymphoma specific- 59%, disease-free 41%, local control- 87%. Univariate analysis: favorable prognostic factors- early stage, conservative surgery, RT, combined modality