A Case of Spontaneous Osteonecrosis of the Knee with Early and Simultaneous Involvement of the Medial Femoral Condyle and Medial Tibial Plateau

Figure 5

Histological findings (hematoxylin and eosin staining). (a) MFC specimen (original magnification, ×20; bars = 1000 µm), (b) magnification of the square region in (a) (original magnification, ×100; bars = 200 µm). (c) MTP specimen (original magnification, ×20; bars = 1000 µm), and (d) magnification of the square region in (c) (original magnification, ×40; bars = 100 µm). Histological examination of both specimens revealed fracture lines (arrow).

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