Esophageal carcinoma is not predisposed by

.common predispositions in developing carcinoma oesophagus includes, *human papillomavirus infection *achalasia cardia (30%) *oesophageal webs (25%) *Barrett&;s oesophagus and also Plummer Vinson syndrome, tylosis, corrosive strictures, and nitrosamines. ref : SRB&;s manual of surgery,5th ed ,pg no 804