A system of surgery . which appear in theadolescent period of life generally undergo this change, with thecomplete ossification of the skeleton. It is, therefore, undesirable tooperate with the belief that more trouble will ensue than at presentexists. It must be borne in mind that such osteomata are generallyplaced about epiphysial lines, and, therefore, in close proximity tojoints. Their removal will also necessarily open up the cancelloustissue of bone. For these reasons it is essential that the best anti-septic or aseptic methods of wound treatment be employed. Of other special outgrowths
A system of surgery . which appear in theadolescent period of life generally undergo this change, with thecomplete ossification of the skeleton. It is, therefore, undesirable tooperate with the belief that more trouble will ensue than at presentexists. It must be borne in mind that such osteomata are generallyplaced about epiphysial lines, and, therefore, in close proximity tojoints. Their removal will also necessarily open up the cancelloustissue of bone. For these reasons it is essential that the best anti-septic or aseptic methods of wound treatment be employed. Of other special outgrowths of bone, the auditory osteomata orexostoses will be considered in Art. XLL, Vol. II., and the ossi-fication of tendons in Art. XXXIY., Vol. II. (See also page 455and Fig. 102.) The subungual osteoma (exostosis) is capped withcartilage, from which it continues to grow like the other cancellousosteomata. It is attached to the ungual phalanx of the big toe, andprojects through the matrix of the nail at the tip of the toe. Fig. 350.—Subungual Osteoma, in -which theNail has disappeared. (From a cast inSt. Thomass Hospital Museum.) 910 DISEASES OF BONES. (Fig. 350). The free border of the nail is turned upwards, and thesoft parts over the bony growth are frequently ulcerated from frictionwith the boot. It varies in size, but is scarcely ever allowed to assumelarge proportions, on account of the pain and inconvenience itcauses in walking. It is very easily removed by a sharp spoon orgouge, but care should be taken that all the tissue covering it is alsoremoved. It is otherwise liable to return, probably on accountof some portion of the cartilaginous cap being left in situ. Fibromata Of bone are very rare except in relation to thejaws and base of skull. In the latter position they have been de-scribed as one form of nasopharyngeal polyp. In other positionsfibromata of bone are probably intermuscular or parosteal tumourswhich have only secondarily become attached to bone. They arereco
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