Лучевая диагностика экзогенно-аллергического альвеолита

Аннотация

The data of clinical, laboratory and X-ray studies of patients with exogenous-allergic alveolitis (EAA) induced by fungi of the genus Paecilomyces were analyzed. Radiographic changes were distinguished by poly-morphism and had a diffuse spread, changes in the transparency of the lung tissue, deformation of the pulmo-nary pattern of a mesh-cellular nature, formation of focal shadow-like shadows were determined. Three vari-ants of structural changes were observed: emphysematous – interstitial, parenchymal – interstitial, and pneu-monic (granulomatous). Changes in lung tissue density of the parenchyma, detected by CT, serve as an addi-tional diagnostic test in the early stages of EAA, when the information content of the conventional X-ray meth-od is limited, and densitometrically calculated changes in optical densities of lungs on CT can not be assessed visually by standard radiographs. Dedicated symptom complexes of radiology studies are pathognomotic for EAA of any etiology. Final verification of the diagnosis requires mycological examination and culture of the fungus in nutrient media.