Osteogenic sarcoma after the age of 50: a radiographic evaluation
نویسندگان
چکیده
منابع مشابه
Radiographic changes to mandibular canal in osteogenic sarcoma.
A 35year-old Chinese man came to the dental clinic with a painful, nonulcerative, and fast-growing swelling over the right mandibular body. Clinical examination revealed that the well-defined swelling was bony hard and tender, and measured about 3 X 3 cm. Panoramic (Fig. 1) and lateral oblique (Fig. 2) radiographs demonstrated an ill-defined radiopaque shadow extending from the apical area of t...
متن کاملOsteogenic Sarcoma of Mandible.
Osteosarcoma (OS) is a malignant neoplasm characterised by the formation of osteoid matrix by neoplastic cells. It is the most common primary malignant bone tumor accounting for 20% of all sarcomas, although its occurrence in the jaw is rare. It shows typical clinical behaviour but varied radiological and histopathological features. It presents various histological aspects. We report a case of ...
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as an adamantinoma. It is interesting to note that all of these arose in the jaw, and the tumour described below also appears to have arisen in the same region. Osteogenic sarcomata have been induced in rabbits by the injection of radium and mesqthorium (Sabin, Doan, and Forkner, 3). The tumour to be described here occurred in a grey rabbit received through the courtesy of Dr. G. F. Petrie of t...
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OBJECTIVE To evaluate pregnancy complications occurring after age 50. METHODS We compared the pregnancy outcomes of women aged 50-64 years with those aged 45-49 years and with the general population. RESULTS During 5 years from January 1, 1999, to June 30, 2004, 123 women aged 45 years and older gave birth. Fifty-five percent were nulliparous, 24 of 123 were aged 50-64 years, and 99 of 123 ...
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Osteosarcoma is a primary malignant tumour of the skeleton characterised by the direct formation of immature bone or osteoid tissue by the tumour cells. The classic osteosarcoma is a rare (0.2% of all malignant tumours) highly malignant tumour, with an estimated incidence of 3 cases/million population/year. Osteosarcoma arises predominantly in the long bones and rarely in the soft tissues. The ...
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ژورنال
عنوان ژورنال: American Journal of Roentgenology
سال: 1978
ISSN: 0361-803X,1546-3141
DOI: 10.2214/ajr.131.3.481