title: Idiopathic granulomatous gastritis diagnosed with endoscopic ultrasound-guided fine-needle aspiration: report of a case.
abstract: A 71-year-old man in whom a gastric submucosal lesion was found incidentally was referred to our hospital for detailed examination. Esophagastroduodenoscopy showed a submucosal lesion in the body of the stomach. Endoscopic ultrasound revealed a 15-mm hypoechoic round mass with calcifications arising from the muscular layer. Confusing the diagnosis, it resembled a gastrointestinal mesenchymal tumor. Subsequently, endoscopic ultrasound-guided fine-needle aspiration was conducted for definitive diagnosis. Pathologic analysis showed a granuloma. Because this patient had no prior exposure to tuberculosis or Helicobacter pylori infection and had no abnormal laboratory data, this submucosal lesion was diagnosed as idiopathic granulomatous gastritis.
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Koh
authors.initials: K
authors.lastname: Imbe
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Irisawa
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Goro
authors.initials: G
authors.lastname: Shibukawa
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Abe
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Akiko
authors.initials: A
authors.lastname: Saito
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Koki
authors.initials: K
authors.lastname: Hoshi
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Akane
authors.initials: A
authors.lastname: Yamabe
authors.affiliation: Department of Gastroenterology, Fukushima Medical University, Aizu Medical Center, Aizuwakamatsu, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Igarashi