Absent microsurface pattern is characteristic of early gastric cancer of undifferentiated type: magnifying endoscopy with narrow-band imaging

Affiliations

• ¹ Department of Gastroenterology and Hepatology, Osaka Red Cross Hospital, Osaka, Japan; Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
• ² Department of Gastroenterology and Hepatology, Osaka Red Cross Hospital, Osaka, Japan.
• ³ Department of Pathology, Osaka Red Cross Hospital, Osaka, Japan.
• ⁴ Department of Endoscopy, Fukuoka University Chikushi Hospital, Fukuoka, Japan.