Lung Sequestration
LUNG SEQUESTRATION
- Normally developed bronchioles and alveoli
- Supplied by systemic rather than pulmonary arteries(thoracic or abdominal aorta)
- Commonly in lower lobes
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Intralobar sequestration
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Extralobar sequestration
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Exam Question
- Sequestration of lung is seen in Posterior part of left lung
- Abdominal aorta supply to the segment involved in intralobar sequestration of the lung
- Bronchogenic sequestration is seen in Left lower lobe
- Chronic left lower lobe pneumonitis On contrast bronchography, the area involved with the pneumonitis does not fill whereas the area around it does fill. The most likely diagnosis Pulmonary sequestration
- Intralobar sequestration of lung takes its blood supply from Descending abdominal aorta
- Diagnosis of lung sequestration by CT scan
- Investigation of choice for diagnosing lung sequestration is Angiography
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