A Unique Lesion of the Esophageal Mucosal Epithelium: Low-grade Intraepithelial Neoplasia or Basal-layer-type Squamous Cell Carcinoma?
نویسندگان
چکیده
According to the 2010 WHO classification of digestive system tumors, esophageal low‐grade intraepithelial neoplasia (LGIEN) is associated with ultrastructural and cytological abnormalities confined to the lower half of the epithelium, and squamous cell carcinoma (SCC) is defined as tumor invasion of the lamina propria or penetration into deeper tissue layers. We here reported a rare esophageal squamous lesion with low‐grade ultrastructural organization and cytological dysplasia confined to the basal layer, as well as invasion into the lamina propria.
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