OSTEOID osteoma was first described in detail by Jaffe1 as a definite clinical entity in 1935. He considered it to be "a benign osteogenic tumor of slow growth."
Prior to Jaffe's paper, this lesion had apparently been diagnosed as "sclerosing nonsuppurative osteomyelitis," "chronic sclerosing osteitis" (Henderson,2 1924), and "sclerosing osteomyelitis of Garré" (Ewing, 1942, and Wishner,3 1933). The sclerosing osteomyelitis described by Garré4 in 1891 most probably also represented the osteoid osteoma.
Quite a few cases of osteoid osteoma have been recorded subsequent to Jaffe's publication.4a However, this condition, which is not extremely rare, still not infrequently remains unrecognized. The authors wish to record a case apparently presenting two osteoid osteomas, one in the neck and another in the shaft of the right femur of the same patient. In all cases thus far reported a single lesion was present, and therefore our case must be