This diagnostic image is an anteroposterior (AP) chest X-ray of a patient in a clinical setting, as evidenced by the presence of an endotracheal tube and ECG leads. The radiograph demonstrates bilateral pulmonary hyperinflation with a notable increase in radiolucency. Specifically, the left lung displays multiple large, focal areas of hyperlucency located at the apex and base. These regions are demarcated by thin, curvilinear, radiopaque borders (indicated by white arrows), which are characteristic of bullae walls. The overall lung volume is increased, with flattening of the diaphragmatic contours. These findings are highly suggestive of Vanishing Lung Syndrome (idiopathic giant bullous emphysema) or advanced bullous emphysema. The image serves as an educational example of how large subpleural bullae can occupy significant portions of the hemithorax, leading to compressive effects on the surrounding lung parenchyma and clinical respiratory compromise.

This diagnostic image is an anteroposterior (AP) chest plain film (X-ray) demonstrating advanced bullous emphysema, specifically illustrating features consistent with Vanishing Lung Syndrome. The primary finding is a giant, thin-walled bulla in the right hemithorax, which is significantly hyperextended and occupies approximately two-thirds of the hemithorax volume. This large, space-occupying lesion causes a visible mass effect, resulting in a shift of the mediastinum toward the right and substantial compression of the adjacent right lung parenchyma, which appears poorly expanded. The left lung also demonstrates hyperlucency and signs of bullous disease. Key clinical concepts illustrated include the radiographic presentation of pulmonary bullae, the compressive effects of giant bullae on mediastinal structures, and postoperative complications like secondary pneumothorax. This image serves as an educational example for pulmonology and thoracic surgery, particularly regarding the diagnosis and surgical management of end-stage bullous lung disease and COPD.

This dual-panel image displays diagnostic thoracic imaging from a patient with Chronic Obstructive Pulmonary Disease (COPD). The left panel is a posterior-anterior (PA) chest X-ray showing classic features of severe emphysema, including hyperinflated lung fields, sparse bronchovascular markings, and a widened chest diameter consistent with a barrel chest deformity. Diaphragmatic flattening and a narrowed mediastinal silhouette are also visible. The right panel is an axial CT scan of the chest (lung window) at the level of the upper lobes, revealing extensive bullous emphysema. Multiple large, thin-walled bullae are visible, particularly in the subpleural regions, along with architectural distortion of the lung parenchyma. These findings demonstrate advanced obstructive lung disease and are clinically significant for explaining symptoms of chronic shortness of breath and impaired gas exchange in elderly patients with a significant smoking history.

This composite figure illustrates giant apical bullous lung disease through multiple modalities: a posterior-anterior chest X-ray (a), coronal Computed Tomography (CT) scans (b, c), and an intraoperative photograph (d). The radiological images (a-c) demonstrate large, symmetrical, bilateral, and thin-walled bullae located at the pulmonary apices. These air-filled spaces occupy approximately one-third to one-half of the upper thoracic cavity, causing compression of the underlying functional lung parenchyma. The CT scans highlight the sharp demarcation between the hyperlucent bullae and the relatively preserved lower lung lobes. The intraoperative photograph (d) provides a macroscopic view of the right upper lobe, showing a large, distended, dark-colored apical bulla with a thin, translucent wall and visible surface vascularization. The surrounding lung tissue appears relatively healthy in texture. This sequence is representative of severe bullous emphysema, requiring surgical intervention such as thoracoscopic bullectomy to relieve dyspnea and improve respiratory mechanics. Educational focus includes recognizing the radiographic signs of giant bullae versus pneumothorax and understanding their surgical correlation.

This diagnostic image displays a two-panel chest roentgenogram (X-ray) from a 65-year-old male, highlighting radiographic features of severe pulmonary emphysema and chronic obstructive pulmonary disease (COPD). Panel A presents a postero-anterior (PA) view, while Panel B provides a lateral view. Key findings include significant hyperinflation of the lung fields with marked flattening of the hemidiaphragms (indicated by white arrows), which loss their normal convex shape. In Panel A, a yellow arrow identifies areas of increased translucency and attenuation of vascular markings consistent with emphysematous parenchymal changes. A red arrow highlights the decreased zone of apposition, representing the diminished area where the diaphragm sits parallel to the inner rib cage. Panel B further illustrates the flattened diaphragmatic contour and an increased retrosternal clear space, reflecting an increased anterior-posterior thoracic diameter (barrel chest). These visual markers are clinically significant as they correlate with the mechanical basis of Hoover's sign, where the horizontal orientation of the diaphragm causes inward rib cage retraction during inspiration.

A multi-panel figure illustrating the clinical course of a patient with lung adenocarcinoma and recurring pneumothorax. Panel A displays a histopathological image (H&E stain) showing malignant epithelial cells forming glandular structures, diagnostic of lung adenocarcinoma. Panels B-E and G are axial contrast-enhanced chest CT scans in the lung window. Panel B establishes a baseline with clear lung parenchyma. Panels C and E demonstrate a left-sided pneumothorax, characterized by a visible pleural line and an absence of distal lung markings, indicating partial lung collapse. Panel D shows spontaneous resolution/absorption of the air in the pleural space. Panel F is a posterior-anterior (PA) chest X-ray showing the lung re-expanded following the insertion of a closed thoracic drainage tube (chest tube). Panel G displays a follow-up CT scan with stable lung expansion and no recurrent pneumothorax. The series highlights the management and radiological appearance of secondary spontaneous pneumothorax in the context of advanced pulmonary malignancy and tyrosine kinase inhibitor (anlotinib) therapy.

A multi-panel medical image sequence documenting the progression and resolution of a right-sided pneumothorax. Panel A presents axial Thorax Computed Tomography (TCT) lung window slices showing a significant right pneumothorax, characterized by a large, dark, air-filled pleural space (radiolucency) causing collapse of the right lung toward the mediastinum; the left lung remains fully expanded with normal density. Panel B is a Posteroanterior (PA) chest X-ray taken after tube thoracostomy, showing the right lung successfully re-expanded with the chest tube in situ. Panel C displays a follow-up chest X-ray after removal of the chest tube on the fifth day, maintaining full lung expansion and clear costophrenic angles. Panel D shows a follow-up axial TCT image two weeks post-discharge, confirming complete resolution of the pneumothorax with bilateral symmetric lung expansion and normal lung parenchyma. This sequence illustrates the clinical management of a spontaneous pneumothorax in the context of COVID-19 infection, from acute presentation to complete recovery.

This multi-panel figure presents diagnostic findings consistent with Birt-Hogg-Dubé syndrome in a familial cohort. Panels (a), (b), and (c) are axial chest CT scans demonstrating bilateral, multiple thin-walled pulmonary cysts of varying sizes and distributions, characteristic of the condition. Panel (b) specifically highlights a concurrent pneumothorax. Panel (e) provides a corresponding posterior-anterior chest X-ray showing a collapsed lung with a visible pleural line and peripheral hyperlucency, confirming a pneumothorax. Clinical manifestations are further illustrated in panel (d), showing cutaneous papules (fibrofolliculomas/angiofibromas) on the neck. Panel (f) contains a DNA sequencing chromatogram comparing a wild-type sequence to a frameshift mutation (c.1579_1580insA) in exon 14 of the FLCN gene. The combination of cystic lung disease, spontaneous pneumothorax, cutaneous lesions, and genetic confirmation highlights the multisystemic nature of this autosomal dominant disorder.