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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: AJR Am J Roentgenol. 2017 May 24;209(3):534–543. doi: 10.2214/AJR.16.17789

Fig. 10.

Fig. 10

60-year-old man who presented with pain approximately 1 year after right hip arthroplasty placement. Coronal proton density–weighted fast spin-echo MR image shows intracapsular expansion, creating indolent pattern of erosion within Gruen zone 8 and extending to top of Gruen zone 7 (arrow), reflecting early adverse local tissue reaction related to trunnionosis.