Pigmented villonodular synovitis - ankle

Case contributed by Dr Domenico Nicoletti


Swelling of the ankle without trauma.

Patient Data

Age: 19 years
Gender: Female

Right ankle

The examination showed abundant joint effusion with two solid synovial nodules. These nodules have intermediate intensity on T1 and low weighing in T2; the latter show "blooming" type artifacts referable to deposits of hemosiderin. No recognizable osteocartilaginous injury.

Case Discussion

The nature of PVNS is still unknown with metabolic disorders, exuberant inflammation, recurrent bleeding and inflammation secondary to repeated trauma are among the possible causes of this disease. MRI allows, in T2-weighted sequences, to detect the presence precipitates hemosiderin inside the nodules that characterize the lesion. The use of m.d.c. standard and dynamic does not seem to further information on the characterization.

Acknowledgement: Prof. Fabio Denicolò

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Case information

rID: 52145
Published: 23rd Mar 2017
Last edited: 28th Nov 2019
Inclusion in quiz mode: Excluded

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