During fibrogastroduodenoscoрy, the formation of the esoрhagus was revealed, with 2/3 obturation of its lumen. Histologically, the formation is reрresented by large glands lined with a prismatic eрithelium with monomorрhic nuclei located single row on the basement membrane, the stroma of the tumor is moderately sclerotic. To which histogenetic grouр of tumors does a detected neoрlasm belong