[A comparative evaluation of the results of classical x-ray study and computed tomography in patients with exogenous allergic alveolitis]. / Sravnitel'naia otsenka rezul'tatov klassicheskogo rentgenologicheskogoissledovaniia i komp'iuternoi tomografii u bol'nykh ékzogennym allergicheskim al'veolitom.

A correlative study of the results of x-ray investigation using routine methods and computerized tomography (CT) was conducted to specify the roentgenomorphological substrate of changes in patients with exogenous allergic alveolitis. The established complex of routine methods is informative enough to interpret the revealed changes. However, at early stages CT helps to specify semiotics and permits obtaining additional information, particularly on quantitative, i.e. densitometric changes. In diffuse and disseminated pulmonary lesions CT can be used as an additional method.

[X-ray diagnosis of histiocytosis X]. / Rentgenologicheskaia diagnostika gistiotsitoza X.

The results of a dynamic x-ray study of 27 patients suffering from histiocytosis X with lung involvement were analyzed; the study was supplemented by CT in 4 cases. X-ray semiotics of the disease was investigated with relation to its stage. X-ray symptom complexes were defined: interstitial, interstitial-granulomatous, and focal (tumorous). The authors have emphasized the fact that the small focal-cystic and pneumothoracic x-ray variants of the disease, described in literature, are not nosological entities but reflect only its stage and complications.