Barium swallow shows failure of LES relaxation, causing distal stenosis of the LES ("bird's beak" sign) proximal dilation indicative or achalasia- or in this case "pseudoachalasia" secondary to Chagas (FA2020 p370). This is caused by the loss of inhibitory neurons in the myenteric (Auerbach) plexus.
submitted by โmotherhen(69)
Barium swallow shows failure of LES relaxation, causing distal stenosis of the LES ("bird's beak" sign) proximal dilation indicative or achalasia- or in this case "pseudoachalasia" secondary to Chagas (FA2020 p370). This is caused by the loss of inhibitory neurons in the myenteric (Auerbach) plexus.