pulmonary cyst
Lymphangioleiomyomatose
der Lunge in der Computertomographie: Multiple, dünnwandige zystoide Veränderungen mit gleichmäßiger Verteilung. Aktuell kein Pneumothorax.
Birt-Hogg-Dubé
syndrome detected incidentally by asymptomatic bilateral pneumothorax in health screening: a case of a young Japanese woman. Chest CT showed right-sided pneumothorax and multiple cystic lesions in both of the patient"s lungs. Adhesion and thickened visceral pleura were found.
A practical
approach to cystic lung disease on HRCT. HRCT shows thin walled cysts (arrow) and ground-glass opacities (*) in a patient with LIP. The cysts have a random distribution
Birt-Hogg-Dubé
syndrome. Multiple lung cysts, often lentiform and subpleural in distribution, typically found in the basal regions of both lungs (1a, 1b) and against the right major fissure (1c).
Birt-Hogg-Dubé
syndrome. Multiple lung cysts, often lentiform and subpleural in distribution, typically found in the basal regions of both lungs (1a, 1b) and against the right major fissure (1c).
A practical
approach to cystic lung disease on HRCT. Multiple cystic lesions are present in the left lung (arrow) with a small pneumothorax (arrowhead). The patient had a known history a previous oropharyngeal squamous cell carcinoma and the lesions were confirmed as cystic squamous cell carcinoma metastases
A practical
approach to cystic lung disease on HRCT. Coronal reformat CT thorax shows multiple thin-walled cysts with a lower lobe predominance in a patient with Birt-Hogg-Dube. The cysts have irregular shapes (arrow) and a right apical pneumothorax is present (arrowhead). The patient had a family history of pneumothoraces
A practical
approach to cystic lung disease on HRCT. HRCT of a patient presenting with a pneumothorax (arrowhead). The only parenchymal abnormality was the presence of a few small cysts, such as the one in the posterior segment of the right upper lobe (arrow). The patient was later diagnosed with LAM
A practical
approach to cystic lung disease on HRCT. HRCT showing widespread ground glass opacities and several small cysts in a patient with a strong smoking history, who was subsequently diagnosed with DIP
A practical
approach to cystic lung disease on HRCT. HRCT from a patient with subacute HP. Small cysts are present (arrow) on a background of widespread ground glass opacity and mosaic attenuation in the anterior segment of the left upper lobe (*)
A practical
approach to cystic lung disease on HRCT. HRCT shows three cysts in the right lung of a patient with LAM. Note the regular conformity of the cysts (arrow) with a thin wall
Correlative
analysis of lung CT findings in patients with Birt–Hogg–Dubé Syndrome and the occurrence of spontaneous pneumothorax: a preliminary study. Chest CT images of patients diagnosed with BHD syndrome. Multiple well-circumscribed, thin-walled lung cysts of willow-like, oval, and irregular shapes and varying sizes can be seen. The lung cysts are in the mediastinal subpleural and interlobular fissure areas in both lungs and grow near the mediastinum. Figures 1 and 2 are images of the same patient before (Fig. 1) and during (Fig. 2) pneumothorax
A practical
approach to cystic lung disease on HRCT. HRCT of a patient with LAM and right pneumothorax. Coronal reformat demonstrates cystic involvement of the juxtraphrenic recesses, but sparing of the extreme apices
A practical
approach to cystic lung disease on HRCT. HRCT of a patient with LCH. Multiple cysts are present of varying sizes and shapes (arrow)
A practical
approach to cystic lung disease on HRCT. HRCT demonstrates sparing of the medial segment of the middle lobe and lingula in a patient with LCH (arrows)
A practical
approach to cystic lung disease on HRCT. HRCT image showing thin-walled cysts in the right lung (arrow) in a patient with LAM
A practical
approach to cystic lung disease on HRCT. HRCT shows a thick-walled cavity in the left lung adjacent to the oblique fissure (arrow) in a patient with a pneumonia. Note the thick wall and ragged edges to the cavity
Correlative
analysis of lung CT findings in patients with Birt–Hogg–Dubé Syndrome and the occurrence of spontaneous pneumothorax: a preliminary study. Chest CT images of patients diagnosed with BHD syndrome. Multiple lung cysts ofvarying sizes can be seen. The lung cysts are in the interlobular fissure areas
Correlative
analysis of lung CT findings in patients with Birt–Hogg–Dubé Syndrome and the occurrence of spontaneous pneumothorax: a preliminary study. Chest CT images of patients diagnosed with BHD syndrome. Multiple lung cysts of willow-like, oval, and irregular shapes and varying sizes can be seen. The lung cysts are in the mediastinal subpleural and interlobular fissure areas in both lungs and grow near the mediastinum
Correlative
analysis of lung CT findings in patients with Birt–Hogg–Dubé Syndrome and the occurrence of spontaneous pneumothorax: a preliminary study. Chest CT images of patients diagnosed with BHD syndrome. Multiple well-circumscribed, thin-walled lung cysts of willow-like, oval, and irregular shapes and varying sizes can be seen. The lung cysts are in the mediastinal subpleural and interlobular fissure areas in both lungs and grow near the mediastinum . Figures 1 and 2 are images of the same patient before (Fig. 1) and during (Fig. 2) pneumothorax
Birt-Hogg-Dubé
syndrome. Multiple lung cysts, often lentiform and subpleural in distribution, typically found in the basal regions of both lungs (1a, 1b) and against the right major fissure (1c).
A practical
approach to cystic lung disease on HRCT. Coronal reformat CT thorax in a patient with CLE demonstrates a cyst with a wall in the left lower lobe (arrow). More classical CLE with a core centrilobular artery and a much less perceptible wall is seen more superiorly (arrowhead)
Pulmonary cysts are round, thin-walled, low attenuation spaces/lucencies in the lung. Lung cysts usually contain air but occasionally also contain fluid or solid material .
Pathology
In contradistinction to all other organs, the term cyst as used in the lung is a misnomer, as it usually refers to a contained focus of gas, not fluid.
Pulmonary cysts can be congenital or acquired. Multiple lung cysts in a child may be associated with an underlying process although this is rare, e.g. pleuropulmonary blastomas .
Differential diagnosis
There are several specific types of thin-walled cystic spaces in the lungs :
- bleb: pleural/subpleural, ≤1-2 cm diameter
- bulla: pleural/subpleural, ≥1-2 cm diameter
- honeycombing: subpleural stacks of cysts, typically 3-10 mm diameter with walls 1-3 mm in thickness
- pneumatocele: usually transient cystic airspace within the lung, usually due to pneumonia or trauma
There are several mimics of pulmonary cysts:
- pulmonary cavity: surrounded by mass, nodule, or consolidation, creating wall thickness >2-4 mm
- emphysema: lucencies without wall and with central vessel
- cystic bronchiectasis: contiguous with other airways
See also
- cystic lung diseases
- bronchogenic cyst
- congenital pulmonary airway malformation
- cystic pulmonary metastases
Siehe auch:
- Pneumatozele
- Bronchogene Zyste
- Langerhanszell-Histiozytose der Lunge
- Lymphangioleiomyomatose
- multiple zystische Lungenherde
- Echinokokkose der Lunge
- zystische Lungenläsionen bei Kindern
- Kavernöse Lungenläsionen
- zystische Lungenmetastasen
- pulmonale Bullae
- pulmonale Blasen (blebs)
und weiter:
Assoziationen und Differentialdiagnosen zu Lungenzysten:
