Frozen section diagnosis for axillary sentinel lymph nodes: the first six years.
2005
Intraoperative frozen section of axillary lymph nodes for the detection of metastatic breast cancer has been controversial because of the labor-intensive techniques necessary to obtain a highly sensitive test, and because of the uncertain significance of frequently detected submicrometastatic carcinoma. In total, 874 consecutive axillary sentinel lymph node cases examined by intraoperative frozen section over a 6-year period were reviewed retrospectively. Frozen section had a sensitivity of 60% and was 100% specific, but when cases with submicrometastatic tumor cells were considered negative, the sensitivity rose to 83%. Rare cases were called ‘atypical’ on frozen section; almost all of these cases were negative for carcinoma on permanent sections. Modern Pathology (2005) 18, 58–61, advance online publication, 10 September 2004; doi:10.1038/modpathol.3800279
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