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Breast cancer patients with the same stage of disease can have markedly different treatment responses and overall outcome. The strongest predictors for metastases (for example, lymph node status and histological grade) fail to classify accurately breast tumours according to their clinical behaviour. Chemotherapy or hormonal therapy reduces the risk of(More)
Cyclin D1 overexpression, detected by standard immunohistochemistry, was correlated with other prognostic variables and its prognostic value was evaluated in a group of 148 invasive breast cancers with long-term follow-up. Overexpression of cyclin D1 (59% of cases) was negatively correlated (chi 2 test) with histological grade (P = 0.0001), mean nuclear(More)
BACKGROUND The use of high-dose adjuvant chemotherapy for high-risk primary breast cancer is controversial. We studied its efficacy in patients with 4 to 9 or 10 or more tumor-positive axillary lymph nodes. METHODS Patients younger than 56 years of age who had undergone surgery for breast cancer and who had no distant metastases were eligible if they had(More)
The aim of this study was to identify patient-, tumour- or treatment-related factors associated with young age that might explain the higher risk of ipsilateral breast recurrence that occurs after breast-conserving therapy (BCT) in young breast cancer patients. In the 'boost versus no boost trial', 5569 early-stage breast cancer patients were entered. All(More)
BACKGROUND Controversy exists concerning the roles of mammography and physical examination in the detection of local recurrence after conservation therapy for breast carcinoma. In addition, the prognostic factors for and optimal treatment of patients with local recurrence are uncertain. METHODS At eight radiotherapy institutes, two cancer institutes, and(More)
PURPOSE In the past 15 years breast conserving therapy (BCT) has become an important treatment option for primary breast cancer. Thirty three angiosarcomas (AS) after BCT have been described in a total of 20 published reports. Limited follow-up data and the lack of information on incidence of AS prompted the authors to review the comprehensive experience in(More)
The sentinel lymph-node procedure enables selective targeting of the first draining lymph node, where the initial metastases will form. A negative sentinel node (SN) predicts the absence of tumour metastases in the other regional lymph nodes with high accuracy. This means that in the case of a negative SN, regional lymph-node dissection is no longer(More)
Disseminated breast tumour cells in sentinel lymph nodes (SNs) were evaluated by quantitative real-time PCR and the sensitivity of this assay was compared to the routine histological analysis. First, several candidate marker genes were tested for their specificity in axillary lymph nodes (ALN) of 50 breast cancer patients and 43 women without breast cancer.(More)
PURPOSE To identify clinical and pathologic factors associated with an increased risk of local recurrence following breast-conservation therapy (BCT) to assess the safety of this procedure for all subgroups of patients. PATIENTS AND METHODS The study population consisted of 1,026 patients with clinical stage I and II breast cancer treated between 1979 and(More)
To determine the effect of age and comorbid diseases on treatment choice and survival, the medical records of 300 breast cancer patients of 55 years and older were reviewed. All patients were admitted to the Netherlands Cancer Institute (NKI) for first treatment between 1980 and 1987. Patients were classified according to severity level of comorbid(More)