(JllEMlaTRy OF BESIUS TLMOJi.S 



511 



son, a lipoid according to ]\Iurray,-* formed in the degenerating 

 fibroids whicli causes local liemolysis and "red degeneration," and 

 there are cases of acute aseptic degeneration of til)roinyonias wiiieli 

 seem to have caused systemic intoxication. 



(h) Chondromas, like normal cartilage, always contain much 

 glycogen (Luharsch). ^Alorner -"' found cliondroitin-sulphuric acid 

 in several chondromas that he examined, althougli Schiuiedeberg had 

 failed to do so. 



(c) Lipomas have been studied by Schulz -^ and by Jaeckle.-^ 

 The former found in a retroperitoneal lipoma 75.75 per cent, of fat, 

 2.25 per cent, of connective tissue, and 22 per cent, of water. Of the 

 fat, 7.81 per cent, was in the form of the free fatty acids and 92.7 per 

 cent, as neutral fats. The fatty acids of the fat consisted of 65.57 

 per cent, oleic acid ; 29.84 per cent, stearic acid ; 4.59 per cent, pal- 

 mitic acid. Cholesterol was only qualitatively demonstrable. In the 

 (.•onnective tissue was found chondroitin-sulphuric acid. Lubarsch 

 found glj'cogen in lipomas only when they were degenerated. 

 Jaeckle observed the formation of calcium soaps in a calcifj-ing li- 

 poma, the calcium being distributed as follows : calcium soaps, 29.5 per 

 cent. ; calcium carbonate, 28.61 per cent. ; calcium phosphate, 41.89 

 per cent. The fats of lipomas he found practically^ identical with 

 those of the subcutaneous tissues, except sometimes for a deficiency in 

 lecithin, as shown by the following figures : 



Lipomas are able to hydrolyze fats and esters, their lipase behaving 

 in all respects like the lipase of normal areolar tissue.-'* Lipoma fat 

 is hydrolyzed by lipase as readily as is nonnal human fat. No rea- 



24 Jour. Obs. and Gvn., 1910 (17), 534. 



25 Zeit. phvsiol. Chem.. 1895 (20), 357. 

 sePfluger's Arch., 1S93 (55), 231. 



2T Zeit. phvsiol. Chem., 1902 (36), 53. 

 28 Wells, Arch. Int. Med., 1912 (10), 297. 



