Kalinterakis Georgios, Vlastos Iakovos, Gianzina Elina, Karvountzis Athanasios, Mastrantonakis Konstantinos, Yiannakopoulos Christos K
Department of Sports Medicine & Exercise Biology, School of Physical Education and Sport Science, University of Athens, Athens, Greece.
Department of Trauma and Orthopedics, General Hospital of Rethymnon, Rethymnon 74100, Greece.
J Orthop Case Rep. 2022 Nov;12(11):54-59. doi: 10.13107/jocr.2022.v12.i11.3414.
Giant cell tumors(GCT) are uncommon and benign tumors originating due to proliferation of the tendon synovial sheath. Most commonly are located in the fingers. Involvement of the patellar tendon in the knee is extremely rare.
We report two cases who presented with moderate swelling located in the anterior surface of the knee, localized anterior knee pain, and painful loss of flexion and catching and locking symptoms. Following detailed imaging evaluation, both cases were treated with open surgical excision and patellar tendon synovectomy. Histological examination revealed the presence of a giant cell tumor of the patellar tendon sheath in both cases.
Despite the rarity to GCT, the importance of considering all possible tumors in cases where a soft-tissue tumor is present should be stressed out.
腱鞘巨细胞瘤（GCT）是起源于腱鞘滑膜增生的罕见良性肿瘤。最常见于手指。累及膝关节髌腱极为罕见。
我们报告两例患者，均表现为膝关节前表面中度肿胀、局限性膝关节前部疼痛以及屈伸时疼痛、交锁和卡顿症状。经过详细的影像学评估，两例患者均接受了开放性手术切除及髌腱滑膜切除术。组织学检查显示两例均为髌腱腱鞘巨细胞瘤。
尽管腱鞘巨细胞瘤罕见，但对于存在软组织肿瘤的病例，应强调考虑所有可能肿瘤的重要性。
