106 



Complications and seguelse. Abortion, menstrual disturbances, 

 pneumonia, pleurisy, peritonitis. 



Clinical diagnosis. Make microscopic examination: 

 (1) Of pork, if any has been left, to find encysted larvae; if larvae 

 are found, feed pork immediately to two or three guinea pigs or white 

 rats, to determine if the encysted larvae are alive; kill one rat after 

 three days and examine intestinal content for adult ; kill the second 

 rat after two weeks, the third rat after three weeks, and hunt for larvae 

 in muscular portion of diaphragm. Even if live trichinae are found 



FIG. 48. Section through a rat's muscle; the infected muscle fiber has lost its striation, its nuclei are 

 enlarged and increased in number. Greatly enlarged. (After Hertwig-Grahan, see Braun, 1903, p. 

 284, fig.212B.) 



FIG. 49. Portion of an isolated trichina cyst, at the pole of which connective tissue cells have wan- 

 dered into the thickened sarcolemma. Greatly enlarged. (After Hertwig-Graham, see Braun, 1903, 

 p. 284, fig. 212C.) 



in intestine, an examination of the muscles may show that the worms 

 were too weak to reproduce, hence prognosis is favorable. 



(2) Of patient's blood, for increased proportion of eosinophiles. ' 



(3) Of patient's stools, for discharged adult worms, especially if 

 diarrhea is severe; dilute the fecal matter with warm water and pour 

 off whatever floats; place remainder in a shallow glass dish so that 

 it will not be over one-twelfth of an inch deep ; move the dish gently 

 around over a dark background (such as dark paper), and hunt for 

 small hair-like objects; place these, if found, in a drop of water on a 



