Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector9579610.17816/kazmj95796Research ArticleCaverns and pseudocaverns in X-rays and their clinical significanceGasulR. Ya.info@eco-vector.comLenin State Institute for Advanced Medical Training151219282412128812910201202202012022Copyright © 1928, Eco-Vector1928<p>For the clinician and partly for the pathologist-anatomist the formation of caverns was so far as if the final chord in the progressing tuberculosis process of a certain area of the lungs, in which the sequestration of caseous infiltrate or tissue melting from pyogenic membrane occurred. But after the works of Assmann, Lydtin, Ulrici, Redeker, etc. the attention of clinicians stopped on early subclavian or centrally lying infiltrates, which very often quickly decayed and gave rise to early caverns. We now know that it is necessary to distinguish between these early caverns, in the initial phase of the tuberculosis process, and late caverns, in the final phase of the process. Both species have a definite place in phthisisogenesis.</p>Kazan Medical archiveКазанский медицинский архив