Not walking? An uncommon spinal pathology

A 14-month-old boy, independently mobile for 1 month, presented after refusing to walk for 2 days. He was afebrile, with no preceding coryzal illness. A diagnosis of transient synovitis was made. Owing to the lack of improvement and ongoing symptoms for 5 weeks, he underwent blood tests, which showed a C reactive protein of 7, an erythrocyte sedimentation rate of 38 and a …