Our lungs are composed of a total of five lobes—two on the left side and three on the right side. Removal of one of these lobes is called a lobectomy.

Since completing the 13.1-mile race last year, Keely was diagnosed with Stage 1 mucinous adenocarcinoma, had the lower lobe of her left lung removed and endured an excruciating recovery.

Her lungs sounded normal to her doctor, but she was sent to get an X-ray in May just in case. The scan showed a 6-centimeter by 6.9-centimeter tumor in the left upper lobe of her lung.

Her lungs sounded normal to her doctor, but she was sent to get an X-ray in May just in case. The scan showed a 6-centimeter by 6.9-centimeter tumor in the left upper lobe of her lung.

A pulmonologist is an internal medicine physician who specializes in respiratory health conditions. Your respiratory system manages airflow in and out of your ...