What is All the following statement regarding this radiological film representing esophagus is true except? and explain in detail?
Ans. (d) Dysphagia is the most common and early presenting symptom.Carcinoma of the esophagus* Squamous cell usually affects the upper two-thirds; adenocarcinoma usually affects the lower-third* Common etiological factors are tobacco and alcohol (squamous cell) and GORD (adenocarcinoma)* The incidence of adenocarcinoma is increasing* Lymph node involvement is a bad prognostic factor* Dysphagia is the most common presenting symptom, but is a late feature* Accurate pretreatment staging is essential in patients thought to be fit to undergo 'curative' treatmentImage source- style="font-family: Times New Roman, Times, serif">