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A case of intralobar pulmonary sequestration revealed by hemoptysis is reported. A left lower lobectomy was performed. Anatomical investigations of the lobe showed a normal lung supplied by an aberrant artery arising from the aorta.

The tracing of venous thromboses of the lower limbs by means of iodine 125 marked fibrinogen is possible in thoracic surgery thanks to the calibration of the apparatus on the femoral surface in cases of left thoracotomy or sternotomy. Twelve patients out of 128, i.c. 9.4%, had a positive test: 11 men and 1 woman of whom 11 had a minimum of 2 risk factors of venous thrombosis. These patients had 7 right and 5 left thoracotomies: 6 pneumonectomies (15.4% of pneumonectomies), 5 lobectomies (13% of lobectomies) and one enucleation; 11 positive tests occurred on patients operated on for cancer. There were 5 thrombo-embolic accidents: 2 fatal and 2 non fatal. Mortality was 4.28%: 6 patients of whom 3 died of infectious causes and 3 of pulmonary embolism: 2 after a pneumonectomy, respectively at 2 days and 2 months, and 1 after a lobectomy at 5 days. This examination was useful to known our percentage of isotopic thrombosis of the lower limb after thoracotomy: 9.4% which is small compared with those of the literature. However these results show the importance of instituting more prophylactic procedures to prevent venous thrombosis and thromboembolism by using heparin in all patients operated an for cancer with an exeresis and presenting 2 or more risk factors of venous thrombosis.