URINE. 323 



ON SOME OTHER MODIFICATIONS OF THE URINE INDUCED 

 BY DISEASE. 



Fat in urine. 



There are certain morbid conditions in which fat is excreted 

 in a free state with the urine, which, at the same time, is 

 neither chylous nor milky, nor contains any large amount of 

 albumen or casein. Urine of this sort most commonly occurs 

 in those diseases in which there is a very rapid loss of substance 

 and force. I have on several occasions detected fat in the urine 

 of phthisical persons, and on two occasions I have found it 

 during tabes. I have already (see page 190) explained in what 

 manner the presence of fat may be detected with certainty ; I 

 would here add a word of caution, that the presence of fat from 

 extraneous sources, as improperly cleaned glasses, &c. must be 

 carefully guarded against. 



Such cases as that which is related by Bachetoni, 1 in which 

 a noble young lady is reported to have discharged two ounces 

 of olive oil with the urine on different occasions, must at least 

 be regarded as mysterious ; Elliotson 2 also witnessed the daily 

 discharge of about one third of an ounce of oil with the urine 

 of a woman suffering from biliary calculi. 



[A case of fatty urine has been recently described by Dr. 

 Golding Bird (Urinary Deposits, page 263.) An analysis of 

 this form of urine has likewise been given in page 229 of this 

 Volume.] 



Milk in urine. 



In speaking of diabetes I adverted to chylous urine, and said 

 a few words regarding milky urine. It appears from an essay 

 of Rayer, in which he enters fully into the subject, that this 

 form of morbid urine is extremely rare ; but that the term 

 ' milky urine' has frequently been applied incorrectly to the 



1 Comment. Bonon. Pars I, ad ann. 1787. 



2 On the discharge of fatty matters from the alimentary and urinary passages. 

 (Medico-Chirurg. Transactions, vol. 18, p. 80.) 



