PMC4762963_01
A true size AP radiograph of a 14 year old male with a radiolucent lesion in the calcar region of the left proximal femur with surrounding sclerosis and periosteal reaction
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F1
A true size plain radiograph AP view revealed an osteolytic area of around 1 cm diameter in the calcar region surrounded by osteosclerotic margins along with periosteal reaction along the medial aspect of neck and metaphysis (Figure 1).
T1 weighted axial MR image showing a hypointense nidus surrounded by a zone of hyperintensity and bone oedema
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F2
T1-weighted images and was hyperintense on T-weighted images (Figures 2 & 3). The clinical and radiological picture was quite confirmatory for the diagnosis of osteoid osteoma, and it was imperative to treat it with Radio Frequency Ablation.
T2 weighted axial image showing the incresed intensity of the nidus as compared to T1 image
EJHS2601-0081Fig3.jpg
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F3
T1-weighted images and was hyperintense on T-weighted images (Figures 2 & 3). The clinical and radiological picture was quite confirmatory for the diagnosis of osteoid osteoma, and it was imperative to treat it with Radio Frequency Ablation.
Intra-operative lateral radiograph showing the k-wire placed in the lesion opening the cavity
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F4
Under image guidance, a 2 mm k-wire was directed towards the osteolytic lesion over which a 5 mm cannulated drill was passed and the cavitary lesion was opened (Figure 4).