Ball Valve Syndrome Treated by Endoscopic Submucosal Dissection

• Kodai Esaki,
• Yutaka Shoji,
• Naoki Ishii

Affiliations

Kodai Esaki

Gastroenterology Division, Tokyo Shinagawa Hospital, Tokyo, Japan

Yutaka Shoji

Department of Rehabilitation, Tokyo Shinagawa Hospital, Tokyo, Japan

Naoki Ishii

Gastroenterology Division, Tokyo Shinagawa Hospital, Tokyo, Japan; Correspondence: Address correspondence to: Naoki Ishii, MD, PhD, MPH, Gastroenterology Division, Tokyo Shinagawa Hospital, 6-3-22 Higashi-Ooi, Shinagawa-ku, Tokyo 140-8522, Japan.