Chapter XXVI

. There are few of the true tumors which may not be met with in bone, including the periosteum.

[Illustration: FIG. 243

Multiple enchondromas of fingers.]

=Fibromas.=--Fibromas may spring from the periosteum, especially about the jaws and from the base of the skull, from which latter place they may project into the nasopharynx and interfere with the welfare of the patient. Some of these tumors are soft and succulent, as well as extremely vascular, and I have seen death occur upon the table in an endeavor to remove a growth of this kind, hemorrhage being uncontrollable.

[Illustration: FIG. 244

Multiple ecchondroses and exostoses.

Skeleton in the museum at Lyons. (Poncet.)]

[Illustration: FIG. 245

Multiple ecchondroses and exostoses. (Lexer.)]

[Illustration: FIG. 246

Cancellous osteomas springing from the diploë. (Musée Dupuytren.)]

[Illustration: FIG. 247

Sarcoma of femur. (Buffalo Clinic.)]

[Illustration: FIG. 248

Fungating osteosarcoma of cranium. (Pemberton.)]

=Cartilaginous Tumors.=--Cartilaginous tumors, as stated in