title: Evolution of symptomatic diffuse esophageal spasm to achalasia.
abstract: Two patients manifested an esophageal disorder which began as typical symptomatic diffuse esophageal spasm and evolved to achalasia. The evolution was evident by roentgenographic criteria in both cases and by manometric findings in one. The features displayed support the contention that these two forms of dysmotility are etiologically related.
mesh_terms: D000293:Adolescent; D003680:Deglutition Disorders / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology; D004931:Esophageal Achalasia / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D004947:Esophagus / Q000000981:diagnostic imaging / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008365:Manometry; D008875:Middle Aged; D011859:Radiography