[Hemoptysis revealing a pulmonary arterial aneurysm on Behçet disease in children: role of computed tomography].

Behçet's disease is a systemic condition whose discovery during hemoptysis on a pulmonary artery aneurysm is rare, especially in children. Through the case of a 11-year-old boy, the authors emphasize the importance of imaging in diagnosis of this disease, whose progression can be fatal if hemoptysis is violent.