Pseudoachalasia as the first manifestation of signet-ring cell duodenal
AbstractPseudoachalasia is an uncommon disorder, mainly caused by malignancy. To
our knowledge, no cases of a signet-ring cell carcinoma of the
non-ampullary duodenum revealed by pseudoachalasia were previously
reported. Early identification of malignancy-associated pseudoachalasia
is crucial to avoid delaying adequate treatment.