BENIGN TUMORS 



421 



constituted 6.3056 per cent. Sollmann * found in the " colloid " 

 of a cystic degenerated fibromyorna both pseudomucin and para- 

 mucin (see " Ovarian Cysts "), which differed somewhat from 

 the same substances found in ovarian tumors. 



(6) Chondromas, like normal cartilage, always contain 

 much glycogen (Lubarsch). Morner 2 found chondroitin -sul- 

 phuric acid in several chondromas that he examined, although 

 Schmiedeberg had failed to do so. 



(c) I/ipomas have been studied by Schulz 3 and by Jaeckle. 4 

 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, 7.31 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, palmitic acid. Cholesterin 

 was only qualitatively demonstrable. In the connective tissue 

 was found chondroitin-sulphuric acid. Lubarsch found glyco- 

 gen in lipomas only when they were degenerated. Jaeckle 

 observed the formation of calcium soaps in a calcifying lipoma, 

 the calcium being distributed as follows : calcium soaps, 29.5 

 per cent. ; calcium carbonate, 28.61 per cent. ; calcium phos- 

 phate, 41.89 per cent. The fats of lipomas he found practi- 

 cally identical with those of the subcutaneous tissues, except 

 sometimes for a deficiency in lecithin, as shown by the follow- 

 ing figures : 



COMPOSITION OF FATS IN 



Edsall found the composition of the fat in the fatty tumors of adiposis dolo- 

 rosa but little different from that of normal fat. 5 



2 Zeit. physiol. Chem., 1895 (20), 357. 

 4 Zeit. physiol. Chem., 1902 (36), 53. 



1 Amer. Gynecol., 1903 (2), 232. 

 3 En-tiger's Arch., 1893 (55), 231. 

 5 Quoted by Dercum and McCarthy, Amer. Jour. Med. Sci., 1902 (124), 994. 



