Sentinel node microscopic metastasis detected after segmentectomy for lung cancer followed by completion lobectomy: two case reports.

We performed sentinel node identification using radioisotopic and/or dye techniques to determine the final indication after segmentectomy in cases with non-small cell lung cancer. Sentinel nodes were examined using intraoperative frozen sections stained with hematoxylin and eosin. We present 2 cases with completion lobectomy performed 7 and 11 days after segmentectomy because immunohistochemical staining of the sentinel nodes showed the presence of microscopic metastases that were not detected by the examination of intraoperative frozen sections. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.