The peculiar bony lesion called aneurysmal bone cyst was first named and described as a distinct entity under this term by Jaffe and Lichtenstein5 in 1942. Increasing awareness since—on the part of physicians, radiologists, and surgeons—has led to an increase in the reported incidence of this lesion so that at present it is not too uncommon a clinical or pathologic entity. Lichtenstein,6 in 1957, was able to report on 50 personal cases seen in the preceding ten years.
While there is still some disagreement about pathogenesis,1,9 the earlier suggestions that this lesion represented some atypical type of giant cell tumor, an unusual hemangioma, or was secondary to subperiosteal or intramedullary hemorrhage have been rejected in recent years. The theory suggested by Lichtenstein6 that the blood-filled, thinwalled, many-chambered cysts were the result of some local alteration in hemodynamics is now accepted by many. He postulated that a
BOSSART PA, FITZPATRICK HF. Aneurysmal Bone Cyst of RibDifferential Diagnosis and Treatment. Arch Surg. 1964;88(2):229-232. doi:10.1001/archsurg.1964.01310200067015