The Case That Looks Simple — Until It Doesn’t

This is one of the most common presentations in an Indian OPD — post-traumatic chest pain after an altercation, a domestic argument, or a workplace incident. And it is one of the most commonly mismanaged. The GP orders an X-ray, sees no fracture, tells the patient “nothing is wrong,” and prescribes diclofenac. The patient goes home confused — if nothing is wrong, why does it still hurt when I breathe?

The answer is that the most common injury from a push — costochondral sprain — is completely invisible on X-ray. Cartilage is radiolucent. You will never see it. The only way to diagnose it is to press on the costochondral junctions during your examination. A 10-second palpation that most GPs skip.

But this guide goes much deeper than costochondral sprains. It starts with a question most doctors never ask: was it a push or a punch? Because the biomechanics are completely different. A push distributes force across 200–300 cm². A punch concentrates the same force into 8–10 cm². The pressure per square centimetre is 20–30 times higher in a punch. This single fact shifts the entire differential — a push favours contusions and sprains; a punch favours fractures.