Department of Radiology and Imaging, Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021 USA.
Medical Radiology Group, 99 Highway 37W, Toms River, NJ 08755 USA.
HSS J. 2013 Feb;9(1):100-5. doi: 10.1007/s11420-012-9283-y. Epub 2012 Aug 28.
Pigmented villonodular synovitis (PVNS) can recur after complete synovectomy and even after total joint replacement. In the authors' experience, there is a misconception that MRI may not be useful to diagnose PVNS in the setting of a total joint replacement due to dephasing artifact from metal. While there are case reports of PVNS in patients with total joint replacement diagnosed surgically, to our knowledge, diagnosis of recurrent PVNS by MRI following total joint replacement has not been reported. This report illustrates the utility of MRI in the diagnosis of recurrent PVNS following total joint replacement by reviewing two cases of pathologically correlated PVNS recurrence following arthroplasty, and two cases in which PVNS recurrence is strongly suspected, though pathological correlation is not available.
色素沉着绒毛结节性滑膜炎(PVNS)在滑膜全切除后甚至在全关节置换后仍可复发。作者的经验是,存在一种误解,即由于金属的去相位伪影,MRI 在全关节置换的情况下可能对诊断 PVNS 没有用处。虽然有关于全关节置换患者的 PVNS 的病例报告,但据我们所知,全关节置换后通过 MRI 诊断复发性 PVNS 的病例尚未报道。本报告通过回顾两例关节置换后与病理相关的 PVNS 复发病例以及两例强烈怀疑 PVNS 复发但无法进行病理相关性检查的病例,说明了 MRI 在诊断全关节置换后复发性 PVNS 中的应用价值。