PMC4178943_01
Sagittal T1-weighted MRI of the left knee shows no attachment of the posterior horn of the medial meniscus to the tibial plateau, but instead the meniscofemoral ligament (ligament of Wrisberg) joins the posterior horn of the meniscus to the lateral surface of the medial femoral condyle, i.e. discontinuity between the anterior and posterior horns, causing effectively the development of degenerative lesion of the posterior horn of the left medial meniscus (arrow).
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F1
Sagittal T1-weighted MRI of the left knee showed no attachment of the posterior horn of the medial meniscus to the tibial plateau, but instead the meniscofemoral ligament (ligament of Wrisberg) joined the posterior horn of the meniscus to the lateral surface of the medial femoral condyle, i.e. discontinuity between the anterior and posterior horns, causing effectively the development of degenerative lesion of the posterior horn of the left medial meniscus (Figure 1 (Fig. 1)).
Weight bearing anteroposterior left lower limb radiograph shows varus deformity of the left lower extremity and narrowing of the medial knee joint and narrowing of the hip joint as well associated with unusual cortical thickening and bone enlargement (arrows). The lateral distal left femoral angle measured 106  , which means approximately 20  deviation from the norms (arrow).
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F2
The lateral distal left femoral angle measured 106 , which means approximately 20  deviation from the norms (Figure 2 (Fig. 2)).
Skull radiographs showed the cotton wool appearance, disorganized trabecular with areas of sclerosis which are poorly defined and fluffy. Widening of the diploic space and relatively indistinct outer table, the frontal sinuses are enlarged. No hyperostosis of the skull base was noted. These findings reflect the underlying pathologic changes of osteoblastic repair and are usually pathognomonic.
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F3
These findings reflect the underlying pathologic changes of osteoblastic repair and are usually pathognomonic (Figure 3 (Fig. 3)).