Tendosynovial giant cell tumor of the patellar tendon sheath

Giant Cell Tumors in the Patellar Tendon Area

“…2 Previous reports of GCTTS around the patellar tendon were described in middle-aged men and women, causing pain, knee swelling, and limited extension. [3][4][5][6][7] Whereas Khanduja et al described a GCTTS that was connected to the patellar tendon, others only referred to its proximity. In all these cases, a symptom-free course with no recurrence was described after either arthroscopically assisted or open excision of the tumor.…”

“…In all these cases, a symptom-free course with no recurrence was described after either arthroscopically assisted or open excision of the tumor. [3][4][5][6][7] Localized nodular PVNS of the knee is far less common than the diffuse type 15 but typically involves the anterior compartment, infrapatellar fat pad, or parapatellar gutters and may present clinically with mechanical symptoms. 1,15 Involvement of the posterior aspects of the knee is rare.…”

“…1 Few cases of GCTTS of the patellar tendon have been described as a cause of pain, knee swelling, and limited extension. [3][4][5][6][7] We present two cases of giant cell tumors located in the anterior knee and causing swelling and intermittent locking.…”