Chassaignac bursa
Chassaignac bursa (also known as the retromammary bursa, submammary serous bursa or occasionally Chassaignac bag) is the space behind the breast, lying between the pectoralis fascia posteriorly and deep layer of superficial fascia anteriorly.
It contains loose connective tissue and aids in mobility of the breast on the thoracic wall. Posteriorly it is bound by the pectoral fascia and anteriorly by the deep layer of the superficial fascia.
Radiographic appearance
Mammography
Chassaignac bursa is a lucency in the mammogram and its radiological significance lies in the fact that it must be seen in all optimally performed craniocaudal and mediolateral oblique mammograms.
Related Radiopaedia articles
Anatomy: Thoracic
- thoracic skeleton
- thoracic cage
- thoracic spine
- articulations
- muscles of the thorax
- diaphragm
- intercostal space
- intercostal muscles
- variant anatomy
- spaces of the thorax
- thoracic viscera
- tracheobronchial tree
-
lungs
-
bronchopulmonary segmental anatomy (Boyden Classification) (mnemonic)
- left lung
- right lung
- variant anatomy
- lung parenchyma
- hilum
- pleura
-
bronchopulmonary segmental anatomy (Boyden Classification) (mnemonic)
-
heart
- cardiac chambers
- heart valves
- pectinate muscles
- cardiac fibrous skeleton
- coronary arteries
- innervation of the heart
- fetal circulation
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pericardium
- pericardial space
- oblique pericardial sinus
- transverse pericardial sinus
-
pericardial recesses
- aortic recesses
- pulmonic recesses
- postcaval recess
- pulmonary venous recesses
- pericardial ligaments
- epicardial fat pad
- esophagus
- thymus
- breast
- blood supply of the thorax
- arteries
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thoracic aorta (development)
- ascending aorta
- aortic arch
- aortic isthmus
- descending aorta
- pulmonary trunk
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thoracic aorta (development)
- veins
- superior vena cava (cavoatrial junction)
- inferior vena cava
-
coronary veins
- cardiac veins which drain into the coronary sinus
- great cardiac vein
- middle cardiac vein
- small cardiac vein
- posterior vein of the left ventricle
- vein of Marshall (oblique vein of the left atrium)
- anterior cardiac veins
- venae cordis minimae (smallest cardiac veins or thebesian veins)
- cardiac veins which drain into the coronary sinus
- pulmonary veins
- arteries
- lymphatics
- innervation of the thorax
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