Arch replacement in a 4-year-old child with traumatic aortic dissection - An unseen reality.

We present a case of a 4-year-old boy with posttraumatic non-A non-B aortic dissection. Pediatric aortic dissection is a rare entity with ill-defined risk factors. A high index of suspicion is needed to identify these patients with aggressive management to offset a high mortality rate. Diagnosis was established with a computed tomography scan, which showed a dissection flap in the aortic arch. The child was taken up for surgery and underwent successful aortic arch replacement with arch vessel reimplantation. We report this case not only because of its incidental rarity but also to highlight the meticulous planning and execution that was essential for a successful outcome.