Aortoesophageal fistula. Report of one case complicating foreing body ingestion with considerations about pathogenesis.

Aorto-esophageal fistula is a very rare disease and few cases are reported. The most frequent ethiological factors are foreign body ingestion primary disease of esophagus or aorta and iatrogenic damages in particular endoscopical investigations. In this report a new case is described and a pathogenic explanation for the development of the disease is proposed.