Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13256-016-1187-x/MediaObjects/13256_2016_1187_Fig3_HTML.gif)
Anteroposterior view of an osteolytic lesion. Plain radiography shows an osteolytic lesion in the tibial pin tract (a). T2-weighted magnetic resonance imaging shows fluid collection (b). The circle shows osteolytic lesion (a), and fluid collection (b), respectively