Sentinel Node Biopsy in Special Histologic Types of Invasive Breast Cancer.

Objective: To assess the feasibility of sentinel node biopsy (SNB) in ductal and lobular invasive breast cancer, a group of tumors known as special histologic type (SHT) of breast cancer.

Materials And Methods: Between January 1997 and July 2008, 2253 patients from 6 affiliated hospitals underwent SNB who had early breast cancer and clinically negative axilla. The patients' data were collected in a multicenter database.

Prognostic value of hematogenous dissemination and biological profile of the tumor in early breast cancer patients: a prospective observational study.

Background: The aim of this study was to investigate the incidence and prognostic value of disseminated tumor cells in bone marrow of breast carcinoma patients with early disease, and to analyze this finding in relation to lymph node involvement, determined by sentinel lymph node (SLN) biopsy analysis, and to prognostic factors of interest.

Methods: 104 patients with operable (T<3 cm) breast cancer and clinically- and sonographically-negative axillary lymph nodes were scheduled for SLN biopsy. Bone marrow aspirates were collected before the start of surgery from both iliac crests, and mononuclear cell layers were separated by density centrifugation (Lymphoprep).

[Comparative study of sentinel node biopsy in patients with multifocal breast carcinoma versus in those with unifocal breast carcinoma.].

Objective: To evaluate the results for sentinel node biopsy (SNB) in patients with multifocal breast cancer (MBC) in comparison to in those with unifocal breast cancer (UBC).

Patients And Methods: A total of 1535 prospective SNB (174 on patients with MBC) were performed at 9 hospitals. In most patients, Tc-99m albumin colloids were injected intraparenchymally into each tumoral focus for SNB.

Is it possible to refine the indication for sentinel node biopsy in high-risk ductal carcinoma in situ?

Background: The indication for sentinel node biopsy (SNB) has not been fully established yet for patients with ductal carcinoma in situ (DCIS).

Aim: To relate the conversion rate to invasive carcinoma with sentinel node positivity in high risk DCIS, and to refine the clinical presentation analysis in order to better select patients for SNB. For this purpose, a risk score was devised.

[Radio-guided occult lesion localization combined with sentinel node biopsy in women with breast cancer].

Introduction: The practice of intratumoral radiocolloid injection for sentinel node biopsy (SNB) allows localization of nonpalpable breast tumors in the same surgical intervention, using the technique known as radio-guided occult lesion localization (ROLL).

Patients And Method: We present our experience with the combined use of both techniques (SNB and ROLL). A total of 233 patients were retrospectively analyzed: 65 patients underwent ROLL and 168 patients underwent wire-guided localization (control group) as the excision modality.