Trachealization of oesophagus is seen in?: (A) Eosinophilic esophagus, (B) Schatzki ring, (C) GERD, (D) Herpes simplex esophagitis
Answer is A. The presence of multiple corrugated rings and linear furrows all through a narrowed oesophagus is called Trachealisation of oesophagus/feline oesophagus. This is seen in eosinophilic esophagitis. Histological confirmation of eosinophilic esophagitis is made with demonstration of 15 eosinophils per HPF.