[Medically unexplained or not? Be aware of a somatic cause of Medically Unexplained Symptoms].

In 2 cases of men aged 26 and 55 respectively we illustrate the complexity of MUS patients since in both cases a somatic diagnosis was missed. The first patient presented with an inability to walk and persistent pain. Because of his symptoms he lost his job, had depressive moods and used alcohol and cannabis. His physical complaints were considered as a functional neurological disorder. Examination however revealed an avascular necrosis of the femoral head on both sides. After surgical treatment he is now slowly recovering. The second patient had developed sexual and bladder dysfunction 10 years ago. More recently he developed problems walking, speaking and swallowing. No neurological explanation had been found and the urologist prescribed self-catheterisation 6 times daily. Examination showed signs of multiple system atrophy. Patient was referred to a specialized neurologist who confirmed this diagnosis and now he can better accept his burden.