Lung Sequestration (x-ray image)

Pulmonary sequestration is a non-hereditary congenital malformation, occurring during pulmonary organogenesis, it is defined as a pulmonary territory characterized by a disconnection of any normal bronchial and vascular element, and whose vascularization is provided by an aberrant systemic artery [1,2] and it is either intralobar or extralobar [3].

Keywords:Lung Sequestration ; CT scan

66-year-old patient, followed in urology for a renal lithiasis undergoing a left percutaneous nephrotomy with the fortuitous discovery during the abdominopelvic CT of a fluid formation of the LID in the thoracic sections. The exploration was completed by a thoracic CT which revealed a postero-basal pulmonary parenchymatous condensation of the right lower lobe containing cystic areas which directly receive its vascularization from the aorta containing some calcification, hypodense and which enhances after injection of the contrast medium measuring 5.5 cm evoking postero-basal pulmonary sequestration in its Pryce type 3 intralobar form.

The patient underwent an atypical resection of the sequestered pulmonary parenchyma after double ligation of the artery, the postoperative follow-up was simple.