eMedicine Specialties > Orthopedic Surgery > Neoplasms
Giant Cell Tumor of the Tendon Sheath: Treatment
Updated: Jun 26, 2009
Treatment
Surgical Therapy
Marginal excision of giant cell tumor of the tendon sheath is the treatment of choice (see Images 17-18). Complete excision can be difficult, as the mass is frequently associated with the tendon sheath or synovial joint. Often, partial excision of the joint capsule or tendon sheath is necessary for complete removal of the tumor. Meticulous dissection and exploration are essential because satellite lesions are common. A Freer elevator or other blunt probe is often helpful in teasing these satellite lesions from beneath the surrounding tendons or other structures. Avoid puncturing these lesions because seeding of adjacent soft-tissue structures may be possible. Occasionally, bony debridement with a curette or rongeur is necessary if adjacent bony erosion is present.
An 11-year-old girl presented with this firm nonfluctuant mass over her posterior medial left ankle that had been present for 5 months and had not increased in size. The mass was not transilluminating. Findings on frozen section were consistent with a benign giant cell tumor of the tendon sheath. The mass was marginally excised.
Jones et al11 noted an association between these lesions and arthritis at the DIP joint. If such arthritis is present, debridement or fusion may be necessary to completely eradicate the process. If the tumor involves the skin, consider the excision of an elliptical area of skin along with the mass. Skin excision may necessitate secondary skin grafting. Rarely, tendon reconstruction may be necessary if tumor excision compromises the associated tendon. Even with careful dissection, reported recurrence rates are 9-44%.
Intraoperative Details
The tumor may involve the tendon sheath, volar plate, capsular ligaments, and joints. Dorsal sites frequently involve the joints or tendinous attachments to bone. Volar sites are more frequently present near the joints, presumably because the fibrous flexor-tendon sheath is thinner at the level of the joints. In a review of 115 cases, 20% had extra-articular joint involvement. In the digits, these tumors are often intimately associated with the flexor or extensor tendon. If no intimate association exists, a stalk of tissue often connects the tumor to the tendon sheath. If the mass is relatively large, smaller satellite lesions extending into the surrounding tendon sheath and synovium may be found.
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References
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Further Reading
Related eMedicine topics
Giant Cell Tumor (Orthopedic Surgery)
Giant Cell Tumor (Radiology)
Keywords
giant cell tumor, localized nodular tenosynovitis, fibrous xanthoma, xanthoma of the synovium, xanthoma of the tendon sheath, xanthogranuloma, xanthosarcoma, fibroma of tendon, myeloid endothelioma, endothelioma, villous arthritis, fibrohemosideric sarcoma, giant cell fibrohemangioma, benign synovioma, sclerosing hemangioma, pigmented villonodular synovitis




Treatment: Giant Cell Tumor of the Tendon Sheath