INTRALOBAR PULMONARY SEQUESTRATION WITH 3 ABERRANT ARTERIES IN A 75-YEAR-OLD PATIENT

A rare case of intralobular pulmonary sequestration (ILS) with three a berrant arteries occurred in a 75-year-old woman. A contrast-enhanced chest CT scan demonstrated a paraaortic, partially enhanced mass shado w and two small liner enhancements in the upper portion of the mass. A definitive diagnosis could not be rendered with a CT scan alone, but the findings suggested bronchopulmonary sequestration with multiple ab errant arteries. Surgery confirmed three fine aberrant arteries arisin g from the thoracic aorta and entering the left lower lobe basal segme nt. Judging from the patient's age and multiple aberrant arteries, the sequestrated lung appeared as if it were acquired. However, all aberr ant arteries were of the elastic type histologically. This finding sug gested that ILS was not an acquired condition but a congenital malform ation.