Intralobar pulmonary sequestration in conjunction with bronchial isomerism.

Pulmonary sequestration is an uncommon congenital anomaly characterised by a mass of non-functional, dysplastic lung parenchyma that docs not communicate with the normal tracheobronchial tree. Such an anomaly commonly receives its blood supply from the systemic circulation. The sequestered pulmonary segment is considered to be intralobar if it is enclosed within the common pleura enveloping the normal lung and extralobar if it has its own separate pleural investment. Intralobar pulmonary sequestration is only rarely associated with other congenital anomalies, whereas a large proportion ofcases of extralobar sequestration are associated with diaphragmatic hernias and other congenital anomalies. ' This case report describes a patient with an intralobar sequestration on the right side who also had a left-sided bronchial anatomy on the right (bronchial isomerism). To our knowledge this association has not been previously reported.