"OSTEOID-OSTEOMA"

Abstract
The present article is a report on five cases of a type of benign neoplasm of bone apparently not hitherto classified. All the cases came to my attention during 1933.1They had the following features in common: 1. The patients were all adolescents or young adults from 11 to 22 years old. 2. In each case the principal complaint was of local pain, usually increasing and often severe enough to interfere with sleep. It was this symptom that brought the patients to consult a physician. 3. Uniformly, the lesion originated in an area of spongy bone. Although it sometimes involved cortical bone, it never penetrated the periosteum. 4. As observed roentgenographically, the pathologic areas were roundish, clearly circumscribed and confined within the bone. 5. The lesions were small and closely similar in size: Two were about 0.5 cm., two were 1 cm., and one was 2 cm., in diameter.

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