[Takayasu's disease localized exclusively in the pulmonary artery]

A 35 year-old woman exhibited a stenotic lesion of the right pulmonary artery with a severe inflammatory syndrome. A diagnosis of Takayasu arteritis was made, although no aortographic abnormality was present. Involvement of pulmonary arteries during the course of Takayasu arteritis is frequent, but a localisation of the disease to the pulmonary arterial tree alone is a very rare condition.