Giant Cell Tumor of the Pes Anserine Bursa (Extra-Articular Pigmented Villonodular Bursitis): A Case Report and Review of the Literature
Figure 1
MRI with (a) axial T1 (TR 602, TE 40), (b) axial short tau inversion recovery (STIR; TR 4910, TE 40), and (c) contrast enhanced coronal T1 fat saturated(TR 540, TE 13) sequences showed a heterogeneous soft tissue mass at the insertion of pes anserinus conjoint tendon with peripheral and septal enhancement. The decreased interspersed signal on all images was due to hemosiderin deposits. There was no evidence of bone or joint involvement.
