Ruptured gastric artery aneurysm: An uncommon manifestation of microscopic polyangiitis

doi:10.3748/wjg.v20.i35.12668

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastroenterol. Sep 21, 2014; 20(35): 12668-12672
Published online Sep 21, 2014. doi: 10.3748/wjg.v20.i35.12668

Ruptured gastric artery aneurysm: An uncommon manifestation of microscopic polyangiitis

Yoshihiro Ikura, Tomohiro Kadota, Shuhei Watanabe, Akira Arimoto, Eiko Nishioka

Yoshihiro Ikura, Department of Pathology, Takatsuki General Hospital, 1-3-13, Kosobecho, Takatsuki 569-1192, Japan

Tomohiro Kadota, Department of Gastroenterology, Takatsuki General Hospital, 1-3-13, Kosobecho, Takatsuki 569-1192, Japan

Shuhei Watanabe, Department of Nephrology, Takatsuki General Hospital, 1-3-13, Kosobecho, Takatsuki 569-1192, Japan

Akira Arimoto, Department of Surgery, Takatsuki General Hospital, 1-3-13, Kosobecho, Takatsuki 569-1192, Japan

Eiko Nishioka, Department of Radiology, Takatsuki General Hospital, 1-3-13, Kosobecho, Takatsuki 569-1192, Japan

Author contributions: Ikura Y and Kadota T equally contributed to this work; Ikura Y and Kadota T designed the study, provided the discussion of the pathology, and wrote the manuscript; Kadota T, Watanabe S and Arimoto A collected the clinical data and provided the discussion of the clinical features; Nishioka E contributed to the interpretation of the radiological images.

Correspondence to: Yoshihiro Ikura, MD, Department of Pathology, Takatsuki General Hospital, 1-3-13, Kosobecho, Takatsuki 569-1192, Japan. ikura@takatsuki-hp.or.jp

Telephone: +81-72-6813801 Fax: +81-72-6823834

Received: February 19, 2014
Revised: May 6, 2014
Accepted: May 25, 2014
Published online: September 21, 2014

Core Tip

Core tip: Gastric artery aneurysm is a rare and lethal condition. Segmental arterial mediolysis (SAM), one of major causes of the aneurysm, has been recognized to be distinguished from inflammatory arteriopathies because of a difference in therapeutic strategy. However, as the present case indicates, SAM may not be an independent disease entity but a morphological alteration associated with diverse vascular damages.