双语病例丨色素沉着绒毛结节性滑膜炎PV

History:A47-year-oldwomanpresentedtoanorthopedistforevaluationofchronicpainofherleftkneeforthepasttwotothreeyears.

病史：47岁女性，左膝慢性疼痛-3年。

Radiographsoftheleftkneewereobtained.Frontal,lateral,andsunriseviewsareshownbelow.

左膝平片（正侧位、髌骨轴位）

AnMRIexamoftheleftkneewassubsequentlyperformed.AxialT1-weighted,fat-saturated(FS)T-weighted,gradient-recalledecho(GRE),coronalT1-weighted,sagittalandaxialprotondensityFS,FST1-weightedprecontrast,axialFST1-weightedpostcontrast,andsagittalFST1-weightedpostcontrastimagesareshownbelow.

随后行左膝MR扫描，各序列图像如下所示。

Findings

Radiographs:Thereisnoacuteosseousabnormality.Thereisnoradiopaqueforeignbody,jointeffusion,orsoft-tissueswelling.Thereismildtri