A 70 year old patient comes with symptoms of achalasia from 3 months. Radiologic features and manometric studies show the typical features of achalasia. What is the next step

This might be the case of pseudo achalasia. It is suspected when Patient older than 60 Dysphagia less than 6 months Excessive weight loss Sometimes infiltrating tumor at gastroesophageal junction will mimic achalasia symptoms and manometric studies. To rule out tumor CT scan must be done