We present a patient affected by systemic hydatidosis with an unusual localization in the thoracic aorta. The pseudoaneurysm, which was treated 8 years ago with conventional surgery, was retreated with an endovascular procedure. The particular evolution of the pathology needed further endovascular intervention. Endovascular exclusion is not the final solution of the disease but protects against rupture of the vessel and systemic dissemination of the disease.
Pseudoaneurysm is due to a disruption in arterial wall continuity. It forms a sac that communicates with the vessel lumen and is surrounded by the compressed, surrounding tissues and not by the wall of the artery from which the lesion arises. Many causes can predispose to the formation of a pseudoaneurysm such as trauma, surgical procedures, anticoagulation. In our patient another important risk factor for the formation of a pseudoaneurysm is ADPKD (autosomal dominant polycystic kidney disease) that can cause vascular complication. The mechanisms leading to the genesis of the pseudoaneurysms in our patient are unknown, but the clinicians should bear in mind when evaluating this type of patients that ADPKD may have a various range of systemic cardiovascular manifestation.
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