[Abdominal intercostal nerve pain. A contribution to differential diagnosis of acute abdominal pain].

Intercostal nerves and their vascular supply can be impinged in a fascial gap of the m.rectus abdominalis and cause neural pain simulating visceral symptoms. The diagnosis is based on clinical symptoms and proven by histological demonstration of cicatricial impingement of an intercostal nerve. The disease can be cured by simple resection of the impinged nerve.