Cancellous osteomas springing from the diploë. (Musée Dupuytren.)
Fig. 247
Fig. 248
Sarcoma of femur. (Buffalo Clinic.)
Fungating osteosarcoma of cranium. (Pemberton.)
Cartilaginous Tumors.
—Cartilaginous tumors, as stated in Chapter XXVI, are not often found outside of the bony skeleton. They may spring from cartilaginous extremities of growing bones, from epiphyseal cartilages, or from the interior of long and short bones, where their origin is probably due to inclusion of cartilaginous elements, as comprehended in Cohnheim’s theory. In young children they are often multiple and involve various parts of the body. Occurring in adults they are less often multiple, but may attain considerable size. (See [Fig. 243].) They are found usually about the ribs, sternum, pelvis, and femora. If the entire structure of a given bone be involved in a growth of this kind, its eradication—that is, amputation—will probably be necessary.
Fig. 249