Intrathoracic extrapleural lung herniation: A new type of lung hernia

W describe the case of a 62-year-old man who presented with dyspnea and back pain, without any other accompanying symptoms. Contrast-enhanced thoracic computed tomography (CT) was performed and CT scan revealed saddle pulmonary embolism. Incidentally, a defect was found in the pleura near the posterobasal segment of the left lower lobe (Fig. 1). There was a subsegmental lung herniation through intrathoracic extrapleural space (Fig. 2). There were thickening and calcifications in the pleura adjacent to the defect. The patient did not have a history of surgery and trauma. He had a history of smoking. Intercostal lung herniation was described in literature [1, 2]. However, to our knowledge, this is the second case which was detected incidentally by CT [3]. Management of a pulmonary hernia depends on symptoms, location, and size. Our case was followed up conservatively.