PT - JOURNAL ARTICLE AU - Blesovsky, Ary TI - Pulmonary sequestration AID - 10.1136/thx.22.4.351 DP - 1967 Jul 01 TA - Thorax PG - 351--357 VI - 22 IP - 4 4099 - http://thorax.bmj.com/content/22/4/351.short 4100 - http://thorax.bmj.com/content/22/4/351.full SO - Thorax1967 Jul 01; 22 AB - A case of extralobar sequestration with findings indicating a pulmonary origin is reported. The literature has been reviewed and evidence presented that intra- and extralobar sequestration are variants of the same abnormality and that the systemic artery is an associated anomaly. From the evidence available at present the pathogenesis of this anomaly is best explained as an abnormality of bronchial and foregut budding resulting from failure of normal embryonic organizer control.