A convenient and reliable method for endoscopic mapping biopsy of cholangiocarcinoma using a double-lumen cytology device

• Masanori Kobayashi, MD, PhD,
• Shomei Ryozawa, MD, PhD,
• Kazuo Ohtsuka, MD, PhD,
• Minoru Tanabe, MD, PhD,
• Ryuichi Okamoto, MD, PhD

Affiliations

Masanori Kobayashi, MD, PhD

Department of Endoscopy, Tokyo Medical and Dental University (TMDU), Tokyo, Japan

Shomei Ryozawa, MD, PhD

Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan

Kazuo Ohtsuka, MD, PhD

Department of Endoscopy, Tokyo Medical and Dental University (TMDU), Tokyo, Japan

Minoru Tanabe, MD, PhD

Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University (TMDU), Tokyo, Japan

Ryuichi Okamoto, MD, PhD

Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan