慢性無気肺を呈した左下葉肺低形成合併・左肺上葉多発転移性肺腫瘍の1例

Multiple Metastatic Lung Tumors in the Left Upper Lobe Complicated with Hypoplasia and Chronic Atelectasis of the Left Lower Lobe：Report of a Case

はじめに　肺葉単位の慢性無気肺は，肺低形成などの先天異常や中葉舌区症候群などの炎症性病変に伴い観察される1，2）．われわれは，慢性無気肺を呈する左下葉肺低形成を合併した左肺上葉・多発転移性肺腫瘍の1手術例を経験した．

An 80-year-old man with surgical history of colon cancer was referred to our department for surgical treatment for multiple metastatic lung tumors in the left upper lobe. The patient had been showing complete atelectasis of the left lower lung lobe one year prior to the consultation. Six months after wedge resections for the pulmonary metastases, the left lower lobe was re-expanded, showing bronchiectasis with rudimentary pulmonary artery branches. Further, the ventilation-perfusion scintigraphy showed decreased uptake in the left lower lobe. These findings indicated that the patient had the hypoplasia of the left lower lobe.