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World J Gastroenterol. Mar 28, 2014; 20(12): 3376-3382
Published online Mar 28, 2014. doi: 10.3748/wjg.v20.i12.3376
Published online Mar 28, 2014. doi: 10.3748/wjg.v20.i12.3376
Helicobacter heilmannii sensu stricto-related gastric ulcers: A case report
Takehisa Matsumoto, Masatomo Kawakubo, Naoko Ogiwara, Seiko Kubota, Mitsutoshi Sugano, Tsutomu Katsuyama, Departments of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto 390-8621, Japan
Tsutomu Katsuyama, Maruko Central Hospital, 1771-1 Maruko, Ueda 386-0405, Japan
Taiji Akamatsu, Endoscopy Center, Suzaka Hospital, Nagano Prefectural Hospital Organization, 1332 Suzaka, Suzaka, Nagano 382-0091, Japan
Naohiko Koide, Department of Surgery, Nagano Prefectural Kiso Hospital, Kiso-Fukushima 397-0001, Japan
Yoshiyuki Kawakami, Hiroyoshi Ota, Department of Health and Medical Sciences, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
Author contributions: Matsumoto T designed and conducted research, wrote the manuscript and had primary responsibility for final content; Kawakubo M, Kubota S and Sugano M performed the research; Ogiwara N performed transmission electron microscopy analysis; Akamatsu T and Koide N performed endoscopic procedures and treatment; Kawakami Y proofread and revised the manuscript; Katsuyama T made the pathological diagnosis, and Ota H designed research, made the pathological diagnosis and wrote the manuscript.
Supported by A Grant-in-Aid for Scientific Research C-20590564 from the Ministry of Education, Culture, Sports, Science and Technology, Japan, to Ota H
Correspondence to: Takehisa Matsumoto, PhD, Departments of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto 390-8621, Japan. ggatcc@shinshu-u.ac.jp
Telephone: +81-263-373493 Fax: +81-263-373492
Received: November 27, 2013
Revised: January 10, 2014
Accepted: January 20, 2014
Published online: March 28, 2014
Revised: January 10, 2014
Accepted: January 20, 2014
Published online: March 28, 2014
Core Tip
Core tip: Herein we report a case of Helicobacter heilmannii sensu stricto (H. heilmannii s.s.)-related gastric ulcers. The organism was identified as H. heilmannii s.s which is a recently identified species of the former “H. heilmannii” type 2 group by transmission electron microscopy, 16S rRNA gene and the partial urease gene sequences. After triple therapy with regimen for eradicating Helicobacter pylori, gastroscopy showed ulcer improvement and no H. heilmannii s.s. upon biopsy.