Diagnostic methods, chemical, bacteriological and microscopical : a text-book for students and practitioners . i. The eggs of this parasiteare much more frequently found in the sputum than arethe parasites themselves, so that the diagnosis will restwith the finding of these ova. These eggs measurefrom 80 to 100 microns in length and 40 to 60 microns inwidth. They are brownish in color, oval in shape,have a smooth thin shell and a lid near one end whichis quite characteristic The parasite is from 8 to 10mm. long, 4 to 6 mm. wide, and is very markedlyrounded anteriorly, being nearly as thick as
Diagnostic methods, chemical, bacteriological and microscopical : a text-book for students and practitioners . i. The eggs of this parasiteare much more frequently found in the sputum than arethe parasites themselves, so that the diagnosis will restwith the finding of these ova. These eggs measurefrom 80 to 100 microns in length and 40 to 60 microns inwidth. They are brownish in color, oval in shape,have a smooth thin shell and a lid near one end whichis quite characteristic The parasite is from 8 to 10mm. long, 4 to 6 mm. wide, and is very markedlyrounded anteriorly, being nearly as thick as broad. The sputum in such cases is usually small inamount, is very tenacious, and is reddish or rusty dueto admixture of blood with the mucus Frequently noblood is found, in which case the sputum will still be ofa yellowish or brown color due to the eggs sputum, also, contains many spirals, which resemblevery closely the Curschmann spiral and, also, theCharcot-Leyden crystals. The eggs of another species of distoma, the distoma hemaobium, havebeen found in the sputum by Manson. (See Blood.). Fig. II.—Ovum ofparagonimus wester-manii, from sputum:1000 X I. {Tyson afterBraun.) V. The Sputa in Disease. (i). Pulmonary Tuberculosis. It has been truly said by Brown that pulmonary tuberculosis has no charac-teristic form of sputum The amount voided may vary from the very slight typeof fibroid tuberculosis to the very abundant sputum of cavity formation. Itis to be said that the amount of pus will usually depend upon the extent of thesecondary infection, although caseous degeneration may lead to the expectora-tion of large amounts of material resembling pus. In he early cases of pulmonary tuberculosis we may find a small amountof sputum which is expectorated only in the morning. This may be verytenacious and resemble very much the sago-like sputum previously or later depending upon the extension of the disease, there will appearsmall caseous particles w
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