INTESTINAL SCHISTOSOMIASIS 269 



which enlarge the cvst and may enter the blood-slream and cause 

 metastases. 



The amoeboid embryo is a muUiple, folded, chitinous vesicle which 

 forms a toxin detrimental to the host. 



It is stated that ripe proglottides develop directly from the cyst 

 because it is capable of producing living embryos with or without a 

 capsule. 



The scolices are often destroyed by phagocytes from direct contact 

 with the host's tissue. 



Feeding experiments have failed. 



PATHOGENICITY. 



A primary tumour is formed in the liver, brain, spleen, kidney^ 

 adrenals with metastases in different organs. 



The symptoms varv according to the organ afifected. 



There may be anaemia, emaciation and weakness leading to prema 

 ture death. 



THE TREATMENT OF TAPEWORMS. 



(1) PRELIMINARY. 



When the patient is not in hospital. 

 Give a brisk saline purge. 

 No food to be allowed for twelve hours. 



Then give one to one and a half drachms of freshh' prepared oil. 

 of male fern in gelatin capsules or as an emulsion. 



Follow this with one ounce of castor oil in two hours. 



(2) THOROUGH. 



When the patient is treated in hospital. 

 Absolute rest in bed. 

 Light diet for two days. 



Remove the mucus from the intestine and about the worm by 

 giving during this period : — 



Ammonium chloride, 10 grains thrice daily, &c. 

 Small doses of podophyllin each morning. 

 At the end of the second day omit all food after 4 p.m., and' 

 give at that hour one ounce of Epsom salts in warm water. 



On the third morning at 7, 8, and 9 a.m. respectively, give half a 

 drachm of the freshly prepared oil of male fern each time. 

 At 10 a.m. give : — 



Eucalyptus oil ... ... ... ... ui. xv 



Chloroform ... ... ... ... "i. xx 



01. ricini ... ... ... ... ... dr. v 



No movement by the patient is allowed during this treatment.. 



