Pulmonary tuberculosis: its pathology, nature, symptoms, diagnosis, prognosis, causes, hygiene, and medical treatment . are three modes in which thesecavities may heal: 1. The cavity may remain open and its surface become lined witha thin layer of plastic lymph. This adheres more or less stronglyto the surrounding textures, is gradually organized, and is finallyconverted into a membrane, which shields the cavity and preventsits further extension. 2. The healing may be effected by the contraction of the cavity,and the slow but steady agglutination of its sides through the inter-vention of dense
Pulmonary tuberculosis: its pathology, nature, symptoms, diagnosis, prognosis, causes, hygiene, and medical treatment . are three modes in which thesecavities may heal: 1. The cavity may remain open and its surface become lined witha thin layer of plastic lymph. This adheres more or less stronglyto the surrounding textures, is gradually organized, and is finallyconverted into a membrane, which shields the cavity and preventsits further extension. 2. The healing may be effected by the contraction of the cavity,and the slow but steady agglutination of its sides through the inter-vention of dense cellular substance of new formation. Dr. Carswell,in his work on Consumption, gives several drawings delineating thismode of healing. PATHOLOGY. 21 3. It may take place by an effusion of coagulative lymph, or by therepeated deposit on the inner surface of the cavity, forming a massmore or less dense in its structure, completely obliterating the cavity,which may be distinctly marked by its fibro-cartilaginous boundary, inwhich the bronchi abruptly terminate. Fig. 7 is a good diagram ofthis mode of healing. Fig. A section of the superior lobe of the lung, illustrating the third mode ofhealing: a, a fibro-cartilaginous cicatrix, surrounded by pulmonary substance,strongly marked by black pigment; 6, a bronchial tube greatly dilated andterminating in a cul-de-sac at the cicatrix ; c, marks of the obliterated bronchialtube; d, a band of serous tissue uniting the lungs to the pleura and ribs. In either of these modes of healing there is always more or less con-traction of the pulmonary tissues, giving rise to a puckering of thelung, which is distinctly marked when the serous envelopment of theorgan is forced to follow the retrocession of the pulmonary sears are commonly found at the apex of the lungs, and areof various sizes and figures; indeed, they occasionally involve theentire superior lobe of the lung. While the ordinary sequence of tubercle in the lungs is s
Size: 1805px × 1385px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublisherphiladelphiajblipp
