CESTODA 131 



from the human bearer. There is a renal hydatid (presented 

 by Dr Pass, of Warwick) which was obtained from a lunatic, 

 its presence being " quite unsuspected during life." Amongst 

 the liver cases (the majority of which are from Dr Hooper's 

 collection), there is one enormous hydatid that was obtained 

 from a young woman who had died during a fit of laughter. 

 The tumour had pushed the diaphragm up to a level with the 

 fourth rib ; and it is stated that, on puncturing the cyst, the 

 fluid contents were ejected " in a jet nearly two feet high." 

 There is one case represented where numerous hydatids were 

 expectorated after hepatitis, whence it was concluded that they 

 were originally connected with the liver. There is a large 

 solitary hydatid that was removed from a young female who 

 died of phthisis, and in whom the consequent swelling had 

 formed in the neighbourhood of the navel. Especially instruc- 

 tive, also, from a clinical point of view, is a case of peritoneal 

 hydatids where the tumours had been diagnosed to represent a 

 case of extra-uterine foetation. It appears that there were two 

 cysts, one of them being connected with the uterus. Two of 

 the enormous hydatids taken from these cysts are preserved in 

 the collection of the Anatomy School of Oxford. Several of 

 the preparations show to perfection the stages of natural cure 

 produced by calcareous degeneration ; and there is one liver 

 showing three of these so-called ossified cysts. The disease in 

 this case proved fatal. 



Most of the entozoa displayed in the Charing Cross Hospital 

 Museum have been contributed by Dr Wiltshire, the series 

 being particularly strong in tapeworms. There are four cha- 

 racteristic examples of hydatids of the liver, representing as 

 many separate cases. Two were from abscesses of this organ. 

 In one of these, Mr Canton's case, the hydatid was, I believe, 

 expelled after operation; but in the other example (presented 

 by Mr Rose, of Swaffham) the parasite was evacuated from an 

 abscess, which burst of itself, externally. 



In the museum at University College, I examined sixteen 

 preparations of hydatid disease, representing almost as many 

 distinct cases. One is a wax model. Eight of the specimens 

 were from the liver, five from the abdomen (including those of 

 the omentum and mesentery), two from the lungs, and one 

 from the heart. The model displayed ordinary hydatids of the 

 liver bursting into the lungs. The mesenteric example is par- 

 ticularly fine, whilst that from the omentum is undergoing cal- 



