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Esophageal Stenosis and Thickening of the Muscularis Propria Diagnosed by Endoscopic Ultrasonography (EUS Diagnosis of Esophageal Muscle Thickening)
Author(s) -
IKEDA Masahiro,
FUJINO Masayuki A.,
KOJIMA Yuichiro,
NAKAMURA Toshiya,
SUZUKI Hiroshi
Publication year - 1991
Publication title -
digestive endoscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.5
H-Index - 56
eISSN - 1443-1661
pISSN - 0915-5635
DOI - 10.1111/j.1443-1661.1991.tb00515.x
Subject(s) - medicine , dysphagia , esophagus , thickening , muscularis mucosae , stenosis , achalasia , endoscopic ultrasonography , radiology , endoscopy , anatomy , chemistry , polymer science
Thickening of the muscularis propria of the esophagus was diagnosed by endoscopic ultrasonography as being the fourth hypoechoic layer larger than 2 mm in thickness. A thickened muscularis propria was observed in 40 patients with dysphagia caused by esophageal stenosis. In the patients with esophageal cancer, the thickening appeared at the proximal end of a layer‐destructive tumor. In the patients with reflux esophagitis, the thickening of the muscularis propria was distinguished from the thickened submucosal layer at the stenosis. In the patients with achalasia, the thickening ivas maximal at the level of the stenosis and the thickness was significantly greater than in the other cases. The thickening of the muscularis propria tapered gradually and disappeared within 10 cm except in the patients with achalasia in whom the thickening reached the upper esophagus. The prestenotic thickening of the muscularis propria depended on the duration of the history of dysphagia and the narrowness of the stenosis.