[Two resected cases of pulmonary adenocarcinoma with intralober metastasis diagnosed by the pathological diagnosis during the operation].

We described two resected cases of pulmonary adenocarcinomas with intralober pulmonary metastasis diagnosed by the frozen section diagnosis. The first case was a 61-year-old female who underwent an operation as a left S4 pulmonary adenocarcinoma which was 2 cm in size, and a left S3 pulmonary nodule which was 3 mm in size, was suspected pulmonary metastasis by CT scan. In September 2007, a partial resection of the left lung S3 was performed at first and the result of the frozen section diagnosis of this tumor was adenocarcinoma. The segmentectomy of the left lung S4, a partial resection of the left lung S6 and S3, and dissection of the lymphnodes (#6, 11) were performed. The final pathological diagnosis was pulmonary adenocarcinoma pT3N0M0=Stage IIB, pm1. The new metastasis of the right lung occurred in 2009, a partial resection of the right lung and systemic chemotherapy were performed. The second case was a 60-year-old female who underwent an operation as a right S10, S6, S2 pulmonary ground grass opacity (GGO) nodules which were 0.5 to 1 cm in size, was suspected pulmonary adenocarcinoma by CT scan. In June 2009, a partial resection of the right lung S10 was performed at first and the result of the frozen section diagnosis of this tumor was adenocarcinoma. Following this diagnosis, a partial resection of the right lung S6, and dissection of the lymphnodes (#7, 10) were performed and these results of the frozen section diagnosis were lung S6 tumor: adenocarcinoma, and the lymphnodes: no malignancy. The additional resection of the right lung S2, S8 was performed, the final pathological diagnosis was pulmonary adenocarcinoma pT-3N0M0=Stage IIB, pm1. After the operation, a systemic chemotherapy was performed.