Infarcted extralobar pulmonary sequestration

A 32-year-old man who presented with symptoms suggesting empyema was found at thoracotomy to have infarction of an extralobar pulmonary sequestration. He was completely relieved by excision of the sequestration after securing the systemic vascular pedicle which had undergone torsion. Recognition of the anomalous bloody supply and other congenital anomalies in such cases is emphasized.