Localized tenosynovial giant cell tumor in the posterior compartment of the knee - A rare case report

Abstract

Background and purpose: Localized tenosynovial giant cell tumors represent a rare benign proliferative disorder of the synovial and surrounding tissue. This condition has insidious and unspecific symptoms that make its diagnosis challenging. In most cases, localized tenosynovial giant cell tumors are described in the hand and are infrequent in larger joints. In the rare cases that affect the knee, the mass described in previous reports is located almost exclusively in the anterior compartment and meniscocapsular junction. The aim of the current study was to present a rare case of localized tenosynovial giant cell tumor. Case description: The paper describes the case of a twenty-eight years old Caucasian man with a localized tenosynovial giant cell tumor in the posterior compartment of the knee. Conclusion: The current study has identified a rare form of localized tenosynovial giant cell tumor. The findings of the presentation have a significant value for the differential diagnosis of the masses in the posterior knee compartment.

Keywords

• Knee
• Localized
• Tenosynovial giant cell tumor
• Synovitis