Review for 10.1186/s12876-022-02169-1 (2022)

Reviewer’s report
Title: 
Submucosal oesophageal squamous cell carcinoma with lymph node
metastasis: A case report and literature review
Version: 
2 
Date: 
05 Dec 2021
Reviewer: 
Szu-Chia Liao
Reviewer's report:
For esophageal cancer, it is not appropriate to make a diagnosis of normal
mucosa only under white light. As we know, the diagnosis and involed layers of
esophageal cancer 
may be not so sensitive under EUS survey. Therefore,
according to the image without endoscopic biopsy confirmation, we can not
make the definite diagnosis for your case.
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