Practical pathology; a manual for students and practitioners . M. Fig. 89. —Arteritis—artery with thickened walls from a with alum hrematein and picro-erythrosin. ( x 80.) a. Greatly and irregularly thickened tunica intima, due in pari toproliferation of the lining endothelial Tunica media with marked cellular infiltration, following the lines of the small nutrient vasa Thickened tunica advcnlitia in which similar cellular infiltrationis X larger vessel (vein) with well-marked cellular inlillratioii. sliulu infiltration of the adventitia with cellu
Practical pathology; a manual for students and practitioners . M. Fig. 89. —Arteritis—artery with thickened walls from a with alum hrematein and picro-erythrosin. ( x 80.) a. Greatly and irregularly thickened tunica intima, due in pari toproliferation of the lining endothelial Tunica media with marked cellular infiltration, following the lines of the small nutrient vasa Thickened tunica advcnlitia in which similar cellular infiltrationis X larger vessel (vein) with well-marked cellular inlillratioii. sliulu infiltration of the adventitia with cellular elements, especiallyaround the vasa vasorum. The middle coat is usually irregularlythinned. 348 BLOOD VESSELS The thickened intima is made up of numerous cells, which appearto be formed by proliferation of the endothelial cells, and of theflattened cells of the intima. As already stated, this proliferationmay become so great that the lumen of the vessel may be almostobliterated. (x 300).—Lining the vessel is a layer of more or less flattened cells,. Fig. 90.—Section of small artery from the boundary area of thekidney from a case of subacute interstitial nephritis. Well-markedendarteritis obliterans. Stained with picro-carmine. ( x 200.) a. Enormous thickening of subendothelial and endothelial tissues, the letter pointing to a process passing from wall to wall, anddividing the lumen into two channels. b. Yellow internal elastic lamina. c. Well-marked muscular coat. d. Delicate external elastic lamina. e. Fibro-cellular adventitia increased in thickness. f. Epithelium of one of the straight tubules. which are spindle-shaped or rounded when seen in section. Beneaththis is a layer of irregular cells, some with rounded, others withelongated nuclei, whilst deeper still, and next to the internal elasticlamina, is a layer of flattened cells, with here and there a group ofrounded cells. Pushing their way into this mass of cells are numerouscapillary blood vessels, which pass
Size: 1672px × 1494px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidpracticalpat, bookyear1912
