Introduction Pigmented villonodular synovitis (PVNS) comprises a Pigmented villonodular synovitis (PVNS) comprises a group of idiopathic lesions in joints,tendon sheathes and group of idiopathic lesions in joints,tendon sheathes and bursae.bursae. ( ( 色素沉着绒毛结节性滑膜炎主要是指关节、滑囊以及腱鞘 色素沉着绒毛结节性滑膜炎主要是指关节、滑囊以及腱鞘内的滑膜特发性的呈结节状或绒毛状进行性增生。 内的滑膜特发性的呈结节状或绒毛状进行性增生。) ) Pigmented vilionodular synovitis (PVNS) is an Pigmented vilionodular synovitis (PVNS) is an uncommon, usually monoarticular disorder and usually unc
