Esophageal cancer pathophysiology

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]

Overview

The pathophysiology of esophageal cancer depends on the histological subtype.

Pathophysiology

The esophagus is lined by nonkeratinized stratified squamous epithelium. This lining is maintained as long as there are no stressors leading to a metaplastic change. These stressors may include genetic factors, chronic alcoholism, smoking, ingesting spicy foods and hot liquids frequently, and chronic gastroesophageal reflux. Eventually, a dysplastic change occurs followed by a metaplastic change, which may be squamous cell carcinoma or adenocarcinoma.[1]

Pathology

Gross pathology

Squamous cell carcinoma or adenocarcinoma of the esophagus may appear as:[2]

Microscopic pathology

Nuclear atypia of malignancy:

Squamous cell carcinoma:

Esophageal squamous cell carcinoma by Nephron - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=31284085

Adenocarcinoma

Esophageal adenocarcinoma by Nephron - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=12475495

References

  1. Quante M, Graham TA, Jansen M (2017). "Insights into the Pathophysiology of Esophageal Adenocarcinoma". Gastroenterology. doi:10.1053/j.gastro.2017.09.046. PMID 29037468.
  2. Sugarbaker, David (2015). Adult chest surgery. New York: McGraw-Hill Education. ISBN 0071781897.
  3. "Squamous cell carcinoma of the esophagus".
  4. "Esophageal adenocarcinoma".


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