Injuries and diseases of the jaws . us formations were so marked thatthey could be discovered as little balls by the naked eye and 304 TUMOURS OF THE LOWEIl JAW. removed for examination by the point of a needle. Thesolid structure consisted of a very peculiar arrangement ofwhat appeared to be acini or cylinders of closely-packedcells, supported by a fibro-nucleated matrix. These acini,or rods, in many places gave the appearance of tubes fromthe aiTangement of their component cells, which resembledvery curiously that of columnar epithelium, or of the epithe-lium of gland follicles. The cut ends
Injuries and diseases of the jaws . us formations were so marked thatthey could be discovered as little balls by the naked eye and 304 TUMOURS OF THE LOWEIl JAW. removed for examination by the point of a needle. Thesolid structure consisted of a very peculiar arrangement ofwhat appeared to be acini or cylinders of closely-packedcells, supported by a fibro-nucleated matrix. These acini,or rods, in many places gave the appearance of tubes fromthe aiTangement of their component cells, which resembledvery curiously that of columnar epithelium, or of the epithe-lium of gland follicles. The cut ends, however, showed nocentral canal. The constituents of these rods were nucleiimbedded in plastic matter, and these separated by manipu-lation into small tailed or so-called spindle cells of similarsize and character to the corpuscles of an ordinary the summer of 1871 I had under my care apatient with a large cystic sarcoma of the lower jawwhich I successfully removed. Portraits of this man before, Fig. 141. Fig. and six months after, the operation are given in fig. 141and fig. 142, and his case will be found in detail in the CYSTIC SARCOMA. 305 Appendix (Case XXVI.). A great part of the bulk of thistumour was formed by two large cysts^ but the solid portionwas found by Mr. Marcus Beck, who carefully examined it,to correspond in all particulars to the description given byMr. WagstafFe. One half of the tumour was presented by meto the Museum of the College of Surgeons, and Mr. Good-hart, the pathological assistant there, confirmed in everyrespect Mr. Beckys observations, and regarded both this andMr. Le Gros Clark^s tumour as glandular in structure andorigin. This being the case, it must be assumed that thedisease commenced in the mucous or submucous glands ofthe gum and cheek, and only subsequently invaded the bone ;and the history of both cases seems to confirm this view. Instances of cystic sarcoma affecting both upper andlower jaw simultaneously must be v
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