Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) The boundary between NEC and squamous cell carcinoma is clear and lymphocytes infiltrating into lymphoid follicles. (B) NEC cells were mixed with esophageal squamous carcinoma cells without a border. Tumor stroma was infused with blood vessels in most cases with capillaries (C) and venules (D). Lymph node metastasis could be found in 24 cases (E, F). Hematoxylin-eosin stain in A-D.(Scale bar: 100 μm)
