| Theme | Laterally spreading tumor (LST) -- Toward a new era | |
|---|---|---|
| Title | Fundamentals and significances of LST sub-classification | |
| Publish Date | 2014/01 | |
| Author | Hiro-o Yamano | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Kenjiro Yoshikawa | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Ryo Takagi | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Eiji Harada | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Hironori Aoki | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Michiko Nakaoka | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Yoshihito Tanaka | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Ryogo Himori | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Makoto Eizuka | Department of Gastroenterology, Akita Red Cross Hospital |
| Author | Yuko Katano | Department of Gastroenterology, Akita Red Cross Hospital |
| [ Summary ] | LST is divided roughly into the granular type and the non-granular type as determined by macroscopic features. Furthermore, the former is subclassified into the homogeneous type (G-H) and the nodular mixed type (G-M). The latter is sub-classified into the flat elevated type (NG-F) and the pseudo-depressed type (NG-PD) according to detailed features. This sub-classification presents problems not only with form of lesion but also clinicopathologic significance. We think that it is important to carry out qualitative diagnosis of all cases using magnifying endoscopy based on these significant factors. | |