[A middle esophageal ring]. / L'anello esofageo medio.

ABSTRACT

The Authors, having observed a case of middle oesophageal web giving rise to severe dysphagia, discuss the aetiopathogenesis, the diagnosis and therapy of these rare oesophageal lesions. Because of its pathological feature, the reported case was succesfully treated by surgical resection of the ring, using a transthoracic approach.