Case Report
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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
Processing time: 211 Days and 21.6 Hours
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.