Squamous cell carcinomas of the esophagus most commonly occur: (A) At the GEJ, (B) Middle 1/3rd, (C) In the lower thoracic esophagus, (D) Evenly distributed throughout the esophagus
Answer is B. - MC type of CA Esophagus World Wide - Squamous cell carcinoma- MC type of CA in western countries - Adenocarcinoma- MC site of Squamous cell carcinoma - Middle 1/3rd- MC site of Adenocarcinoma - Lower 1/3rd- MC site of CA Esophagus overall - Middle 1/3rd- SCC - more common in low socio-economic status- Adenocarcinoma - more common in high socio-economic status