[Adventitial cyst of the popliteal artery. Imaging and percutaneous treatment]. / Kyste adventiciel de l'artère poplitée. Imagerie et traitement percutané.

Adventitial cystic disease of the popliteal artery is a rare cause of calf claudication in young patients. A case explored by magnetic resonance imaging is reported: a water rich mass around the popliteal artery compressed the arterial lumen. Treatment consisted in CT-guided percutaneous aspiration. Good functional outcome except for severe efforts, despite persistance of cystic images was observed. Echography, computed tomography or magnetic resonance imaging are more useful to establish the diagnosis than arteriography because these techniques can directly visualize the arterial wall. Percutaneous treatment preserves the intima and can be performed in out-patients. When feasible, it could be preferred to conventional surgery.

[Multiple bronchial artery aneurysms in a patient with silicosis]. / Anévrismes multiples artériels bronchiques chez un silicotique.

We report a case of haemoptysis in a long-standing silicotic in whom arteriography revealed saccular aneurysms of the bronchial arteries. Embolisation was satisfactory in excluding the aneurysms and leading to a favourable outcome. The mechanism of the formation of these aneurysms which is extremely rare was discussed with reference to the few reports and literature.