Treatment of Tenosynovial Giant Cell Tumor in Diffuse Disease (D-TGCT)
Diffuse tenosynovial giant cell tumor (D-TGCT) is a locally aggressive form of TGCT that presents a distinct clinical challenge due to its tendency toward multi-nodular growth and joint destruction.
Clinical Scenario
D-TGCT forms multiple nodules that proliferate in the larger joints — most commonly the knees — and is likely to be locally destructive. This diffuse pattern distinguishes it from the localized nodular form and informs the approach to management.
Treatment Approach (Partial Overview)
Management in this setting may involve radiation-based strategies directed at the affected joint, including both external approaches and techniques applied directly within the joint space. Specific selection criteria, sequencing, and patient eligibility are detailed in the full protocol.
Full regimen, indications, and clinical decision points available via the link below.
References
DOI: 10.56875/2589-0646.1032
- D-TGCT forms multiple nodules that proliferate in the larger joints, such as the knees (75%), and are likely to be locally destructive.
- Its role has been established in a post-operative setting, especially after incomplete resection to enhance local control and as a salvage option for recurrent diseases.
- RT is reserved for patients with recurrent disease, symptomatic residual disease, or when limb sparing is not feasible.
- Radiosynoviorthesis involves the injection of a β-emitting radionuclide, usually 90-Yttrium (90Y) into the articular cavity.