A 60-year-old woman went in for a routine scan of the arteries in her neck, the kind doctors order to look for early signs of plaque buildup. She had high cholesterol but no symptoms. The scan could not find a major artery that normally sits on the right side.
It was on the left. That single misplaced vessel led to a CT scan that showed something far bigger: the organs in her chest and abdomen were flipped left to right, like a reflection in a mirror. According to a case report published March 24, 2026, in Cureus, she had complete situs inversus totalis, a condition present from birth, and had reached her 60s without it being identified.