retrosternal airspace
The retrosternal airspace is seen as a normal lucency between the posterior aspect of the sternum and anterior aspect of the ascending aorta on lateral chest radiographs. This space normally measures less than 2.5 cm in width. Increased retrosternal airspace is a sign of pulmonary emphysema, while obliteration of the retrosternal airspace is an indication of an anterior mediastinal mass.
Related Radiopaedia articles
Chest
- imaging techniques
- chest x-ray
- approach
- adult
- frontal projection
- lateral projection
- lateral decubitus
- congenital heart disease
- medical devices in the thorax
- common lines and tubes
- nasogastric tubes
- endotracheal tubes
- central venous catheters
- pleural catheters
- cardiac conduction devices
- prosthetic heart valve
- review areas
- pediatric
- neonatal
- adult
- airspace opacification
- differential diagnoses of airspace opacification
- lobar consolidation
- atelectasis
- mechanism-based
- morphology-based
- lobar lung collapse
- chest x-ray in the exam setting
- adult chest x-ray in the exam setting
- pediatric chest x-ray in the exam setting
- neonatal chest x-ray in the exam setting
- cardiomediastinal contour
- chest radiograph zones
- tracheal air column
- fissures
- normal chest x-ray appearance of the diaphragm
- nipple shadow
- lines and stripes
- anterior junction line
- posterior junction line
- right paratracheal stripe
- left paratracheal stripe
- posterior tracheal stripe/tracheo-esophageal stripe
- posterior wall of bronchus intermedius
- right paraspinal line
- left paraspinal line
- aortic-pulmonary stripe
- aortopulmonary window
- azygo-esophageal recess
- spaces
- signs
- air bronchogram
- big rib sign
- Chang sign
- Chen sign
- coin lesion
- continuous diaphragm sign
- dense hilum sign
- double contour sign
- egg-on-a-string sign
- extrapleural sign
- finger in glove sign
- flat waist sign
- Fleischner sign
- ginkgo leaf sign
- Golden S sign
- Hampton hump
- haystack sign
- hilum convergence sign
- hilum overlay sign
- Hoffman-Rigler sign
- holly leaf sign
- incomplete border sign
- juxtaphrenic peak sign
- Kirklin sign
- medial stripe sign
- melting ice cube sign
- more black sign
- Naclerio V sign
- Palla sign
- pericardial fat tag sign
- Shmoo sign
- silhouette sign
- snowman sign
- spinnaker sign
- steeple sign
- straight left heart border sign
- third mogul sign
- tram-track sign
- walking man sign
- water bottle sign
- wave sign
- Westermark sign
- approach
- HRCT
- chest x-ray
- airways
- bronchitis
- small airways disease
- bronchiectasis
- broncho-arterial ratio
- related conditions
- differentials by distribution
- narrowing
- tracheal stenosis
- diffuse tracheal narrowing (differential)
- bronchial stenosis
- diffuse airway narrowing (differential)
- tracheal stenosis
- diverticula
- pulmonary edema
- interstitial lung disease (ILD)
- drug-induced interstitial lung disease
- hypersensitivity pneumonitis
- acute hypersensitivity pneumonitis
- subacute hypersensitivity pneumonitis
- chronic hypersensitivity pneumonitis
- etiology
- bird fancier's lung: pigeon fancier's lung
- farmer's lung
- cheese workers' lung
- bagassosis
- mushroom worker’s lung
- malt worker’s lung
- maple bark disease
- hot tub lung
- wine maker’s lung
- woodsman’s disease
- thatched roof lung
- tobacco grower’s lung
- potato riddler’s lung
- summer-type pneumonitis
- dry rot lung
- machine operator’s lung
- humidifier lung
- shower curtain disease
- furrier’s lung
- miller’s lung
- lycoperdonosis
- saxophone lung
- idiopathic interstitial pneumonia (mnemonic)
- acute interstitial pneumonia (AIP)
- cryptogenic organizing pneumonia (COP)
- desquamative interstitial pneumonia (DIP)
- non-specific interstitial pneumonia (NSIP)
- idiopathic pleuroparenchymal fibroelastosis
- lymphoid interstitial pneumonia (LIP)
- respiratory bronchiolitis–associated interstitial lung disease (RB-ILD)
- usual interstitial pneumonia / idiopathic pulmonary fibrosis (UIP/IPF)
- pneumoconioses
- fibrotic
- non-fibrotic
- lung cancer
- non-small-cell lung cancer
- adenocarcinoma
- pre-invasive tumors
- minimally invasive tumors
- invasive tumors
- variants of invasive carcinoma
- described imaging features
- adenosquamous carcinoma
- large cell carcinoma
- primary sarcomatoid carcinoma of the lung
- squamous cell carcinoma
- salivary gland-type tumors
- adenocarcinoma
- pulmonary neuroendocrine tumors
- preinvasive lesions
- lung cancer invasion patterns
- tumor spread through air spaces (STAS)
- presence of non-lepidic patterns such as acinar, papillary, solid, or micropapillary
- myofibroblastic stroma associated with invasive tumor cells
- pleural invasion
- vascular invasion
- tumors by location
- benign neoplasms
- pulmonary metastases
- lung cancer screening
- lung cancer staging
- lung cancer staging
- IASLC (International Association for the Study of Lung Cancer) 8th edition (current)
- IASLC (International Association for the Study of Lung Cancer) 7th edition (superseeded)
- 1996 AJCC-UICC Regional Lymph Node Classification for Lung Cancer Staging
- non-small-cell lung cancer
Siehe auch:
Assoziationen und Differentialdiagnosen zu retrosternal airspace:
