CESTODA 129 



ovary. Amongst the series contributed by Dr Farre, there is 

 a case represented where a large cyst containing numerous 

 hydatids "occupied the pelvis of an infant and produced reten- 

 tion of urine/' which ultimately proved fatal. There are also 

 several fine examples of hydatids from the omentum (Dr Farre's 

 case), besides a good specimen of acephalocysts connected with 

 the vesiculse seminales. There are two other cases in which 

 these larval entozoa were passed with the urine. At the time 

 when I made my inspection, the entire series represented 

 twenty-five separate cases, of which only one appears to have 

 been published in detail (Mr Evans's case, ' Medico- Chirurgical 

 Transactions/ 1832). In addition to the above, I must not 

 omit to particularise two instructive preparations illustrative 

 of a case in which an hydatid was lodged in the right 

 half of the cerebrum. This was from a girl in whom head 

 symptoms showed themselves a year before death, and in whom 

 there was partial hemiplegia of the left side. I may add that 

 there is also in the series a doubtfully genuine example of 

 hydatids of the breast. 



The collection in connection with the Westminster Hospital 

 contains several highly interesting specimens of entozoa (one 

 of which I believe to be altogether unique), but it is by no 

 means rich in the matter of hydatids. Out of a score of 

 preparations of parasites of various kinds, only four (apparently 

 representing the same number of cases) are hydatids, all of 

 which appear to have been connected with the liver. Two are 

 certainly so, one of the latter (Mr Holthouse's case) showing 

 calcareous degeneration. 



The museum connected with St Mary's Hospital Medical 

 School, in addition to several liver cases, contains one interest- 

 ing example of hydatids of the lung (Dr Chambers^ case), and 

 also three valuable preparations illustrating Mr Coulson's 

 remarkable case of hydatids affecting the tibia. One of the 

 preparations shows the bone itself, which was eventually removed 

 at the joint, the operation having been performed by Mr 

 Spencer Wells. 



Here, perhaps, it will not be out of place to mention as a 

 fact of special clinical interest that I have encountered records 

 of no fewer than nine other similar cases where hydatids 

 have taken up their abode in the tibia, generally selecting 

 the head or upper part of the bone. Some of my notes have 

 been mislaid, but, speaking from recollection, one of the 



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