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. 2021 Nov 29;40(5):443–457. doi: 10.1007/s11604-021-01224-3

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© The Author(s) 2021

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Fig. 10 — A 60-year-old male patient with AVN. a A sagittal T2WI shows necrotic areas surrounded by a high and low-signal-intensity rim (arrow). The rim is displayed as a “double-line sign”. b A sagittal FS-T2WI shows that the signal of the center of the lesion is preserved with a fatty marrow signal, although it is composed of necrotic bone marrow tissue