[Additional Lobectomy after Pulmonary Excision for Non-invasive Lung Adenocarcinoma due to Malignant Positive Cytology at the Residual Lube].

A 67-year-old male was pointed out a pure ground grass opacity sized 1.7 cm in computed tomography (CT), which reminded unchanged size in CT findings for 18 months. This region was removed using pulmonary wedge resection with margin length of 0.5 cm and clustered pulmonary adenocarcinoma cells were revealed by cytological examination at the margin of the residual lung, thus additional left upper lobectomy was performed later.