From the archives of the AFIP. Giant cell tumor of the upper extremity.

Giant cell tumor (GCT) is a relatively common primary bone tumor that typically develops in young adults between the ages of 20 and 40 years. Our archives contain 1,183 cases of histologically proved and radiographically correlated GCTs, collected in consultation over 40 years. From this large series, we identified 243 lesions (21% of GCTs) arising in the upper extremity distal to the scapula. This report demonstrates the spectrum of radiologic findings of GCT of the upper extremity, augmented where appropriate by accompanying pathologic material.