Two Cases of p-Tis Lung Cancer in Patients Diagnosed through Histological Study after Spontaneous Pneumothorax Surgery
1)Department of Thoracic Surgery, Nippon Medical School Musashi Kosugi Hospital
2)Department of Thoracic Surgery, Nippon Medical School
3)Department of Pathology, Nippon Medical School Musashi Kosugi Hospital
Background: Spontaneous pneumothorax is a relatively rare complication of lung cancer. Herein, we report two cases of lung cancer in situ with spontaneous pneumothorax as the initial symptom.
Cases: Case 1: A 63-year-old male presented to our outpatient clinic with chest discomfort. He had a collapsed lung, and we inserted a chest drainage tube through the thoracic cavity to re-expand the lung. Computed tomography of the chest showed a large emphysematous bulla at the lung apex. Video-assisted thoracoscopic surgery was used to resect the bulla, and the final pathological diagnosis was an emphysematous bulla with adenocarcinoma in situ.
Case 2: A 45-year-old man presented to our outpatient clinic with pain in the left chest and dyspnea. To treat an almost completely collapsed lung, we inserted a chest drainage tube into the thoracic cavity. Air leakage continued for a few days, so we resected the bulla. The final pathological diagnosis was an emphysematous bulla with a squamous cell carcinoma in situ.
Conclusion: It is important to consider the possibility of lung cancer in patients with pneumothorax and emphysematous changes, especially in middle-aged or elderly patients.
ϊγεγο 2015; 11(3), 161-166
emphysematous bulla, carcinoma in situ, pneumothorax, operation
Junichi Okamoto, MD, PhD., Department of Thoracic Surgery, Nippon Medical School Musashi Kosugi Hospital, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan