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Imaging characteristics of intra- and extra-lobar sequestration [124]

“ Type Intra-lobar Extra-lobar Percentage 75% of cases 25% of cases Presentation Presents in adulthood with pain, infection and haemoptysis ...

Percentage75% of cases25% of cases
PresentationPresents in adulthood with pain, infection and haemoptysis
40-50% are associated with congenital anomalies 
Presents in infancy with feeding difficulties, respiratory distress, cyanosis and heart failure
Venous drainageCentral drainage (‘intra’ = ‘central’ drainage)Systemic drainage via inferior vena cava, azygos or hemiazygos
Arterial supplySystemic feeding vessels from the descending thoracic aortaSystemic feeding from aorta or from the splenic, gastric or intercostal arteries
Pleural relationshipEnclosed in visceral pleuraOwn pleura