| Theme | Magnifying Endoscopic Diagnosis of Gastro‒intestinal Carcinomas | |
|---|---|---|
| Title | Magnified Endoscopic Classification for Superficial Esophageal Squamous Cell Carcinoma | |
| Publish Date | 2017/12 | |
| Author | Akiyoshi Ishiyama | Division of Gastroenterological Internal Medicine, Cancer Institute Hospital |
| [ Summary ] | The Japan Esophageal Society classification system was published in 2012. It is a simple magnified endoscopic classification for superficial esophageal squamous cell carcinoma created based on Inoue's and Arima's classification. The condition is divided into two categories (Type A and Type B) and patient diagnosis is based on the depth of microvascular tumor invasion (intra‒epithelial papillary loops ; IPCLs). Type A includes carcinoma in situ lesions and inflammatory change and Type B consists of squamous cell carcinoma lesions. This classification system has recently encountered issues with respect to accurate determination of invasion depth, in particular for Type B2. | |