Korean J Gastroenterol.  2013 Aug;62(2):92-96. 10.4166/kjg.2013.62.2.92.

Endoscopic Characteristics of Upper Gastrointestinal Mesenchymal Tumors Originating from Muscularis Mucosa or Muscularis Propria

• Song JH
• Kim JI
• Kim HJ
• Cho HJ
• Kim HK
• Cheung DY
• Park SH
• Kim JK

• KMID: 1775745
• DOI: http://doi.org/10.4166/kjg.2013.62.2.92

Abstract

BACKGROUND/AIMS
Subepithelial tumors are occasionally found during upper gastrointestinal endoscopy. The purpose of this study was to evaluate endoscopic characteristics of mesenchymal tumors originating from muscularis mucosa or muscularis propria.
METHODS
A total of 307 mesenchymal tumors of the upper gastrointestinal tract were diagnosed between March 2006 and February 2012 at Yeouido St. Mary's Hospital (Seoul, Korea). Data on endoscopic and endoscopic ultrasonographic findings were collected and analyzed by retrospectively reviewing the medical records.
RESULTS
The mean size of the mesenchymal tumors originating from muscularis mucosa was significantly smaller than those originating from muscularis propria (10.5+/-6.9 mm vs. 14.3+/-13.9 mm, p=0.035). The most common locations of the mesenchymal tumors originating from muscularis mucosa and muscularis propria were esophagus (69.1%) and body of the stomach (43.3%), respectively (p<0.001). Rolling sign was more commonly observed with mesenchymal tumors originating from muscularis mucosa (80.4%, p=0.001), and cushion sign was more frequently absent with those originating from muscularis propria (72.4%, p<0.001). Internal echo was homogenous in 89.7% and 81.9% of mesenchymal tumors originating from muscularis mucosa and muscularis propria, respectively (p=0.092).
CONCLUSIONS
The size, location, and movability of mesenchymal tumors originating from muscularis mucosa were different from those of mesenchymal tumor originating from muscularis propria.propria.

Keyword

Mesenchymal tumor; Subepithelial tumor; Endoscopic ultrasonography

MeSH Terms

Adult
Aged
Aged, 80 and over
Esophagus/pathology/ultrasonography
Female
Gastrointestinal Neoplasms/*diagnosis/pathology/ultrasonography
Gastrointestinal Stromal Tumors/*diagnosis/pathology/ultrasonography
Gastroscopy
Humans
Male
Middle Aged
Mucous Membrane/pathology
Retrospective Studies
Stomach/pathology/ultrasonography

Reference

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