[Benign schwannoma: a case report about a uncommon localisation].

Schwannoma is a benign slow growing nerve sheath tumor which generally originates from cranial or spinal nerve roots. Peripheral nerve localisations are scarce. We report the case of a 76-year man who presented with a laterosternal chest wall mass located in the fourth intercostal space. Diagnosis of intercostal benign schwannoma was suggested by medical imaging and confirmed histologicolly upon surgical removal. Chest wall solitary schwannoma is exceptional. Our case is still more interesting by its peripheral localisation and late occurence following a chest trauma.