The localized form of a giant-cell tumor of the tendon sheath is uncommon and rarely intraarticular. While the sonographic findings are nonspecific, the magnetic resonance (MR) findings can be diagnostic. Relatively homogeneous iso- or marginal hyperintensity on T2-weighted sequences, lack of susceptibility effects due to hemosiderin, the demonstration of a fibrous capsule and the absence of adjacent joint involvement may help to differentiate localized and diffuse forms of giant-cell tumors of tendon sheaths and pigmented villonodular synovitis. Copyright (C) 1998 Elsevier Science Inc.
- Joints neoplasm
- Knee-ligments, menisci, cartilage
- Magnetic resonance
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging