Delcogliano A, Galli M, Menghi A, Belli P
Istituto di Clinica Ortopedica, Università Cattolica del Sacro Cuore, Rome, Italy.
Arthroscopy. 1998 Jul-Aug;14(5):527-31. doi: 10.1016/s0749-8063(98)70085-4.
The localized form of pigmented villonodular synovitis (PVNS) is a rare pathological entity characterized by a limited involvement of the synovium. The knee is most commonly affected. In the knee joint, the disorder generally presents as a nodular, pedunculated lesion protruding into the articular cavity. The lesion is usually revealed by mechanical symptoms such as locking. We report on two cases of localized PVNS that involved the patellar fat pad, an extremely rare area of involvement. Mechanical symptoms were not present. In one case, the lesion reached considerable dimensions without interfering with joint function. Arthroscopic treatment was easily performed. No recurrence was observed at 1-year follow up.
色素沉着绒毛结节性滑膜炎（PVNS）的局限性形式是一种罕见的病理实体，其特征是滑膜受累范围有限。膝关节最常受累。在膝关节，该疾病通常表现为突出到关节腔内的结节状、带蒂病变。病变通常由诸如绞锁等机械性症状揭示。我们报告两例局限性PVNS累及髌下脂肪垫的病例，这是一个极其罕见的受累部位。没有机械性症状。在一例中，病变达到相当大的尺寸但未影响关节功能。关节镜治疗操作简便。随访1年未观察到复发。
