. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. rusty aI]d f dcept for injection, and the light c , . J. spot was merely lacking in brill- Way ; uUt SUCU Spots atiancy. Examination of the ceru- times persist long enousjh minous plug showed that it had to migrate quite a distance been in contact with the ulcerated „ 4i _ , surface. Healing was prompt un- acloss the membrane, gen-der boric-acid powder. erally moving toward theupper posterior margin,and sometimes passing out upon the meatus wall. Thisis probably
. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. rusty aI]d f dcept for injection, and the light c , . J. spot was merely lacking in brill- Way ; uUt SUCU Spots atiancy. Examination of the ceru- times persist long enousjh minous plug showed that it had to migrate quite a distance been in contact with the ulcerated „ 4i _ , surface. Healing was prompt un- acloss the membrane, gen-der boric-acid powder. erally moving toward theupper posterior margin,and sometimes passing out upon the meatus wall. Thisis probably an evidence that the growth of the epithelialsurface is centrifugal (Politzer) ; but the similar behav-ior of perforations of all the layers, which has been re-ported, seems harder of explanation. The substantia propria of the membrane may be thick-ened or thinned pathologically ; both alterations beingmore often irregular and localized. In the former casethe opaque areas which result may be due to the depositof fatty or granular matter, or to fibrous organization ofexudates ; and either the radiate or the circular layer of. Fig. 4166.—Transverse Section of Inflamed and Thickened MembranaTympani, showing distention of the vascular channels and small-cell infiltration of the cutis, with little or no change in the mucoussurface and the substantia propria. From a woman dying of puerperalfever in the course of which otitis media, without perforation, de-veloped, e. Epidermis ; c, thickened cutis with its vessels : pr, fibrousmembrana propria ; s, moderately infiltrated mucosa. (Politzer.) fibres may be the seat of the change, giving a correspond-ing form to the thickened area. As in the arevs senilisof the cornea, such a change is apt to take place in theperiphery of the drum-membrane in advanced life, some-times blending with the normal peripheral opacity, oragain lying wholly within it. Exudation products areprone to undergo calcification, and even true ossification 344 REFER
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmedicine, bookyear188
