Journal
BREAST
Volume 9, Issue 3, Pages 139-143Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1054/brst.2000.0169
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Axillary lymph node dissection (ALND) is an important tool in staging patients with breast cancer. However, this procedure has several sequelae and complications and improvement in early diagnosis has led to an increasing number of cases of ALND in which axillary nodes are found to be negative. Sentinel node (SN) biopsy appears to be a less invasive alternative to ALND. The aim of the present study was to assess whether SN is a reliable indicator for axillary staging. We studied 126 consecutive patients with T1-T2 breast cancer and clinically negative axilla. In each case, 30-70 MBq of 99mTC-labelled colloidal albumin was injected subdermally close to the tumour and SN was visualised by lymphoscintigraphy. Surgery was performed 24 h after injection and the SN was removed under the guidance of a gamma ray-detecting probe. ALND was then undertaken in all cases. A histopathologic examination of the SNs was then made and the findings compared with the status of the other axillary nodes. SNs were identified and biopsied in 115/126 patients (91.3%) and correctly predicted the axillary status in 110/115 cases (95.6%). In five cases (4.4%), SNs were found to be negative, but other axillary nodes were positive. Our data confirm that SN biopsy is a good method for staging the axilla in patients with breast cancer. However, before SN biopsy can replace ALND in daily clinical practice, some technical aspects must be standardized, and clinical trials are required in order to clarify the prognostic impact of false-negative cases. (C) 2000 Harcourt Publishers Ltd.
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