The involvement of the esophagus in amyloidosis secondary to rheumatoi
d arthritis is rare. The case of a female patient with rheumatoid arth
ritis and secondary esophageal amyloidosis (type AA) with a radiologic
and endoscopic clinical picture compatible with achalasia is presente
d. In the manometry carried out after two cardiomyotomies, abundant no
n propulsant tertiary waves were seen, as were two primary waves, intr
aesophageal pressure higher than that of the gastric fundus and lower
hypertensive esophageal sphincter which was completely relaxed on one
occasion, resulting in a manometric pattern which was different to tha
t of the other two cases published with the same disease. Endoscopic c
ardiomyotomies and dilatations were performed. The patient died after
2 years due to post dilatation esophageal perforation. The manometric
findings are compared with those of the two previous similar cases wit
h emphasis being made in that the anarchic arrangement of the amyloid
in the esophagus produces different unforeseen and uncharacteristic mo
tility patterns. The authors only found in the literature two cases of
esophageal amyloidosis secondary to rheumatoid arthritis simulating a
chalasia.