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This patient also underwent TNE, which detected several inflamed and enlarged gastric folds at the gastroesophageal junction (figure, C).
In conclusion, our observations suggest that EUS-FNA is a very accurate and less invasive procedure with favorable sensitivity and specificity in the diagnosis of endoscopic biopsy-negative diffuse gastrointestinal lesions appearing as exaggerated gastric folds or as flat or circumferential lesions.
According to the most popular hypothesis, bezoars originate from strands of hair in the gastric folds combining with mucus and food particles and growing in size.