A 9-year-old boy presented with a localized swelling on the right side of his chest. The swelling was non-tender, smooth to touch, bony hard in consistency and fixed to the rib. Initially, it was pea sized, which later increased to the present size (0.5 cm) and has been constant since the last three years. The skin over the swelling was free and movable, non-tender, and uninflamed. The patient was afebrile and had no respiratory symptoms or any other chest swelling.
The chest X-ray revealed a bony growth on the lateral aspect of the sixth rib. Image is attached for reference. What can be the likely diagnosis? *This case is from the Editorial team of Docplexus and is meant for educative purposes only.
