Cyriax syndrome: a misdiagnosed condition of the chest wall

Cyriax syndrome is a rare entity of the chest wall, which mainly affects young people. It can manifest as abdominal pain in the right or left hypochondriac region, which may be very intense, and often causes problems in the differential diagnosis. We report the case of a 36-year-old man who presented with intense left hypochondrial pain, worsening on exercise. After multiple specialized consultations and several unnecessary and expensive investigations, a diagnosis of Cyriax syndrome was obtained. A thorough physical examination might have been sufficient to evoke the diagnosis.