. Pathological technique; a practical manual for workers in pathological histology and bacteriology. blue solu-tion for a few seconds while on the cover-glass. The prepa-ration is then washed in water, rinsed with alcohol, clearedwith xylol, and mounted in balsam. Of the animal parasites, the entamoeba histolytica is some-times found secondaiy to an hepatic abscess which has perfo-rated into the lung (see page 381). Portions of the membraneof an echinococcus cyst or the hooklets from the head may befound in the sputum, but infection with this parasite is veryrare in this country. Of the crysta
. Pathological technique; a practical manual for workers in pathological histology and bacteriology. blue solu-tion for a few seconds while on the cover-glass. The prepa-ration is then washed in water, rinsed with alcohol, clearedwith xylol, and mounted in balsam. Of the animal parasites, the entamoeba histolytica is some-times found secondaiy to an hepatic abscess which has perfo-rated into the lung (see page 381). Portions of the membraneof an echinococcus cyst or the hooklets from the head may befound in the sputum, but infection with this parasite is veryrare in this country. Of the crystals which occur in sputa, the most importantare the Charcot-Leyden crystals, found mainly in bronchialasthma, and the crystals of the fatty acids, of cholesterin,and of hematoidin. Tyrosin and leucin are much morerare. The Charcot-Leyden crystals are colorless, elongatedoctahedra of varying size, soluble with difficulty in cold 468 PA THOL O GICAL TE CHNIQ UE. water, insoluble in alcohol, ether, chloroform, and dilutesaline solution. Hematoidin crystals occur as ruby-red rhombic plates Fig. 152.—Charcot-Leyden crystals and eosinophilic leukocytes in a smear prepara-tion of sputum from a case of asthma (W. H. Smith; photo by L. S. Brown).
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Keywords: ., bookcentury1900, bookdecade1910, bookidpath, booksubjectpathology
