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Fig. 18 | Insights into Imaging

Fig. 18

From: Osteoid osteoma: the great mimicker

Fig. 18

Osteoid osteoma mimicking enthesitis. Male, 20 years old, presenting with back pain for six weeks. CR (a) showed left scoliosis with no identifiable bone lesions. Sagittal T2 FS MRI (b) revealed bone marrow edema on the posterosuperior corner of the vertebral body (asterisk), which raised the suspicion for enthesitis. The CT scan (c, d, e) showed a small and mineralized nidus on the concave side of the region of scoliosis (arrow) with reactional bone sclerosis (dashed arrow)

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