1. Conclusions: Historically, landmark and report measurements in esophagoscopy hae been measured and standardized the upper incisor.

2. Methods: Clinical feature, preoperative radiology, esophagoscopy and prognosis of surgical treatment were retrospectively analyzed in 7 patients with esophageal carcinosarcoma.

3. Objective To review the difference of esophageal Carcinoma Lesions and their location through X-ray, esophagoscopy and pathologic samples.

4. Mean difference data were applied to reported standard oral esophagoscopy landmark measurements to convert to standard landmark measurements from the nares.

5. Materials and Methods: The clinic and X-ray features of 29 cases with esophageal submucosal hematoma proved by esophagoscopy were analyzed retrospectively.