Giant cell tumor of the scapula |
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Authors: | Jun Aoki M.D. Richard P. Moser Jr. LTC MC USA Tuyethoa N. Vinh M.D. |
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Affiliation: | (1) Department of Radiologic Pathology, Armed Forces Institute of Pathology, Washington, D.C., USA;(2) Department of Orthopedic Pathology, Armed Forces Institute of Pathology, Washington, D.C., USA;(3) Department of Radiology and Nuclear Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA |
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Abstract: | This study reviews the demographic, radiologic, and histologic characteristics of 13 cases of an important primary skeletal neoplasm, giant cell tumor of bone, occurring in an uncommon location, the scapula. that eight of 13 patients presented prior to 20 years of age contrasts significantly with the typical age distribution (between 20–40 years) encountered in giant cell tumors arising in long bones. As it does elsewhere in the skeleton, giant cell tumor of the scapula frequently demonstrates cystic and/or telangiectatic components on histologic examination. The radiologic appearances of giant cell tumor in the scapula and in more typical locations are similar and include: (1) well-defined (geographic) margins, occasionally with a delicate sclerotic rim, (2) prominent trabeculations, (3) expanded bone contour, (4) frequent extension to the subchondral plate, and (5) absence of internal mineralization. Tumor sites within the scapula included: coracoid process, acromion, and body (three cases each); glenoid (two cases); and superior and inferior angles (one case each).The opinions or assertions contained herein are the private views of the authors and are not to be construed as official or as reflecting the views of the Department of the Army, the Department of Defense, or the Uniformed Services University of the Health Sciences. |
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Keywords: | Bone tumor Giant cell tumor Scapula Skeletal neoplasm |
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