. Archives of physical medicine and rehabilitation . if it had not been operated on,it either would have remained latentwithout increasing in size, or havegrown larger into the group of hugebone cysts which up to the presenttime with one exception have had tobe subjected to amputation. Huge Bone Cysts This group is relatively small and,as before the advent of the x-rays bonecysts were relatively rare but now arerelatively frequent, we have additionalevidence that the tendency of the bonecyst is toward spontaneous ossification. In an unpublished pamphlet which Iwrote in April 1^03 for teachings


. Archives of physical medicine and rehabilitation . if it had not been operated on,it either would have remained latentwithout increasing in size, or havegrown larger into the group of hugebone cysts which up to the presenttime with one exception have had tobe subjected to amputation. Huge Bone Cysts This group is relatively small and,as before the advent of the x-rays bonecysts were relatively rare but now arerelatively frequent, we have additionalevidence that the tendency of the bonecyst is toward spontaneous ossification. In an unpublished pamphlet which Iwrote in April 1^03 for teachingsurgical pathology, I find this state-ment after bone cysts: These arerare tumors. We have observed nocases, except a dentigerous cyst in thelower jaw. When I wrote thispamphlet in 1903, Dr. Halsteds clinicin Johns Hopkins had been op;n thir-teen years. There had tieen 14,000surgical cases, 40,000 patients in thehospital, and 62 examples of primarybone tumors. At that time I had re-viewed the literature on bone cysts.(Progressive Medicine, December.


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