Pulmonary Sequestration

Lungs

“…103.4). However, rare cases found in the upper lobe and in the right middle lobe have also been reported (Warner et al 1958;Savić et al 1979). The proportion of cases with left or right lower lobes was 7:4 (deParedes et al 1970).…”

“…The proportion of cases with left or right lower lobes was 7:4 (deParedes et al 1970). In addition, a case with intralobar sequestration in bilateral lower lobes (Gerle et al 1968) and cases with intra-and extralobar sequestrations (Kafka and Beco 1960;Savić et al 1979) were reported. Regarding blood supply, sequestrations are usually supplied from one or more arteries from the aorta via branches of the lower thoracic aorta arising immediately above the diaphragm (deParedes et al 1970).…”

“…Venous drainage is usually to the inferior pulmonary vein (deParedes et al 1970). However, the involvement of other drainage veins including the hemiazygos vein (Harris and Lewis 1940;Simopoulos et al 1959;Cooley 1962), vena cava inferior, azygos vein, intercostal vein, or vena cava superior have also been reported (Savić et al 1979). Different from extralobar sequestration, this type of sequestration is not usually associated with other congenital anomalies (deParedes et al 1970).…”

“…The majority of cases (80-90%) of extralobar sequestrations occur on the left side (Smith 1956;Savić et al 1979). Extralobar sequestration is usually located in the posterior costodiaphragmatic angle adjacent to the lower esophagus (deParedes et al 1970) and above the diaphragm (Fig.…”

Persistant Right Lower Lobe Consolidation

“…ELS is the least common type, accounting for approximately 25% of all cases. 2 With ELS, the arterial supply is frequently from the abdominal aorta or one of its branches. Venous drainage is usually via the inferior vena cava, azygos, or portal venous systems.…”