[Diagnosties of pulmonary-renal syndrome in young patients with suspected community-acquired pneumonia].

In patients of young age atical clinical course of community-acquired pneumonia may mask of interstitial lung disease causing systemic vasculitis. Lung damage occurs in the form of vasculitis with perivascular infiltration, interstitial pneumonia symptoms and various sequential processes up to necrosis of the lung tissue and pleurisy. A distinctive feature of vascular pneumonia is probability of development of plurivisceral damage with simultaneous involvement of heart, kidney, abdominal, skin, joints and hepatolienal syndromes into tfe pathohogical process. At suspicion on development of systemic vasculitis it requires to perform differential diagnosis with the use of immunological tests and X-ray examination of the chest. Lung disease in systemic vasculitis worsens prognosis and necessitates urgent therapeutic measures.