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Pulmonary Sequestration

The term sequestration comes from the Latin “Sequestrare”, which means to separate Though rare, it is the second most common lung malformation with an incidence of 1.1%–1.8% of children Almost all cases occur sporadically. Pulmonary Sequestration is the presence of a discrete mass of lung tissue without normal connection to the airway system. Blood supply to the sequestered area arises Not from the pulmonary arteries but from the aorta or its branches. Pulmonary sequestration is two types Intalobar sequestration and Extralobar Sequestration. intralobar sequestrations Occur within the lung substance Extralobar sequestrations Occur external to the lung