title: [Value of computed tomography in the differential diagnosis of infiltrative changes in the lungs].
abstract: Computed tomography (CT) was performed in 73 patients with pulmonary infiltrative changes of unknown etiology. Their preliminary clinical and X-ray studies suggested protracted pneumonia in 46.6%, malignant neoplasms in 27.4%, tuberculosis in 16.1%, and pyesis in 9.9%. The preliminary clinical and X-ray conclusion fully agreed with the verified diagnosis only in 31.5% of patients. The accuracy of CT in assessing infiltrative changes was much higher and ran to 89.1%. According to CT findings, nontumor diseases were found in 56 (76.7%) patients, malignant tumors in 17 (23.3%). Among inflammatory processes there were prevalent pyesis 23.3%), pulmonary tuberculosis (20.7%) and pneumonias (19.2%). In the group of 17 patients with neoplasms, 8 were found to have central cancer with hypoventilation of a lung portion, 4 had peripheral cancer, and 5 presented with bronchoalveolar carcinoma. The use of high-performance CT is of great importance.
authors.forename: I E
authors.initials: IE
authors.lastname: Tiurin
authors.forename: B E
authors.initials: BE
authors.lastname: Ivanishchak
authors.forename: N A
authors.initials: NA
authors.lastname: Il'ina
authors.forename: N E
authors.initials: NE
authors.lastname: Matsenko
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000000981:diagnostic imaging; D013902:Radiography, Thoracic; D013492:Suppuration / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging
vernacular_title: Znachenie komp'iuternoĭ tomografii v differentsial'noĭ diagnostike infil'trativnykh izmeneniĭ v legkikh.