Postradiation extraskeletaI osteosarcoma after treatment of hemangioma of bone

A case of postradiation extraskeletal osteosarcoma, first case in Korea, is reported. This tumor arose in the soft tissue of left hip just above the greater trochanter that 4 years and 10 months previously had 'received 6,000 rad of radiation over a period of 6 weeks after removal of hemangioma of left ilium. Pathologically the tumor was a pleomorphic spindle cell tumor with multifocal osteoid deposition, which is indistingushable from conventional osteosarcoma of bone microscopially, Histogenesis of this tumor is discussed

Clinical Observation of the Legg-Perthes Disease

The clinical observation and analysis were carried out on 69 cases of Legg·Perthes disease. And the following results were obtained. 1. Sex ratio (male: female) was 8 : 1. 2. Peak age was from 4 years to 13 years. 3. Chief complaint at diagnosis was limping. (62.396). 4. Limitation of motion was marked in abduction and internal rotation of hip. 5. The most frequent pathological stage was fragmentation state. (46. 4%) 6. The second Caterall group was most frequent. (44.4%) 7. The most frequent method of treatment was ambulatory abduction brace. 8. According to evaluation by Mose method, good results was obtained in the first and second Caterall group. 9. Caterall grouping was a good indicator for prognosis