Asymptomatic gastric anisakiasis detected in gastric cancer screening: A case report
Fumiue Harada,
Kana Yamamoto,
Akio Takeuchi,
Hiroshi Uenishi,
Yosuke Tachiya,
Chika Yamamoto,
Yuta Tani,
Mutsuko Ohnishi,
Morihito Takita,
Tetsuya Tanimoto,
Masahiro Kami,
Ryusaburo Shineha
Affiliations
Fumiue Harada
Department of Internal Medicine, Soma Central Hospital, 3–5-18, Okinouchi, Soma, Fukushima 976-0016, Japan; Department of Disaster and Comprehensive Medicine, Fukushima Medical University, Fukushima, Fukushima 960-1295, Japan; Corresponding author at: Department of Internal Medicine, Soma Central Hospital, 3–5-18, Okinouchi, Soma, Fukushima 976-0016, Japan.
Kana Yamamoto
Department of Radiation Health Management, Fukushima Medical University, Fukushima, Fukushima 960-1295, Japan; Medical Governance Research Institute, 2–12-13–201 Takanawa, Minato, Tokyo 108-0074, Japan
Akio Takeuchi
Department of Internal Medicine, Soma Central Hospital, 3–5-18, Okinouchi, Soma, Fukushima 976-0016, Japan
Hiroshi Uenishi
Department of Internal Medicine, Soma Central Hospital, 3–5-18, Okinouchi, Soma, Fukushima 976-0016, Japan
Yosuke Tachiya
Department of Internal Medicine, Soma Central Hospital, 3–5-18, Okinouchi, Soma, Fukushima 976-0016, Japan
Chika Yamamoto
Department of Radiation Health Management, Fukushima Medical University, Fukushima, Fukushima 960-1295, Japan
Yuta Tani
Medical Governance Research Institute, 2–12-13–201 Takanawa, Minato, Tokyo 108-0074, Japan
Mutsuko Ohnishi
Medical Governance Research Institute, 2–12-13–201 Takanawa, Minato, Tokyo 108-0074, Japan
Morihito Takita
Department of Radiation Health Management, Fukushima Medical University, Fukushima, Fukushima 960-1295, Japan; Medical Governance Research Institute, 2–12-13–201 Takanawa, Minato, Tokyo 108-0074, Japan
Tetsuya Tanimoto
Medical Governance Research Institute, 2–12-13–201 Takanawa, Minato, Tokyo 108-0074, Japan
Masahiro Kami
Medical Governance Research Institute, 2–12-13–201 Takanawa, Minato, Tokyo 108-0074, Japan
Ryusaburo Shineha
Department of Internal Medicine, Soma Central Hospital, 3–5-18, Okinouchi, Soma, Fukushima 976-0016, Japan
Anisakiasis is a parasitic disease caused by Anisakis simplex and has become an emerging zoonosis as preferences for eating raw or undercooked seafood have become more common. Few case reports of asymptomatic anisakiasis have been published to date. A 79-year-old asymptomatic man underwent esophagogastroduodenoscopy (EGD) for gastric cancer screening. The gastroenterologist diagnosed superficial gastritis without any malignant lesions but found an Anisakis larva while reviewing EGD images. The physician performed a second EGD and removed the larva. The patient reported that he ate the flatfish sashimi for dinner on the day before the first EGD. This case indicates the existence of asymptomatic gastric anisakiasis, indicating that anisakiasis incidence may have previously been underestimated.
