Giant Cell Tumor of Bone: Documented Progression over 4 Years from Its Origin at the Metaphysis to the Articular Surface

Figure 3

MRI of the right knee 4 years after initial presentation demonstrates an expansile multilobulated mass in the medial femoral condyle. (a) Coronal T2 turbo spin echo (TSE) short tau inversion recovery (STIR), (b) sagittal T2 TSE fat saturation, and (c) coronal and (d) sagittal T1 TSE fat saturation images demonstrating marked interval increase in size of a T1 and T2 heterogeneous multilobulated, expansive osseous lesion, as indicated by the arrows, extending from the posterior distal medial femoral metaphysis to the medial femoral epiphysis. Within this mass are multiple fluid filled spaces with fluid-fluid levels suggestive of intralesional secondary aneurysmal bone cyst formation.

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