*Leisions of the [[Oesophagus - Anatomy & Physiology|oesophagus]] or [[Oesophageal groove|oesophageal groove]] such as tumours, abcessation or infection with ''Actinobacillous lignierii''. | *Leisions of the [[Oesophagus - Anatomy & Physiology|oesophagus]] or [[Oesophageal groove|oesophageal groove]] such as tumours, abcessation or infection with ''Actinobacillous lignierii''. |