Tracheal rupture usually occurs after blunt traumas. Isolated tracheal rupture is an extremely rare condition. The diagnosis of isolated tracheal rupture is very important for treatment and prognosis. Physical examination and imaging techniques should be used to make the diagnosis. Lateral neck and chest X-rays are very important for early diagnosis. Other techniques are thorax, neck tomography and bronchoscopy. In this paper we present a case of isolated tracheal rupture and discuss the early diagnostic techniques used. (C) 2004 Lippincott Williams & Wilkins.