1. Achalasia is due to the loss of esophageal carcinoma.2. Originally diagnosed as acid reflux, further tests revealed the problem as achalasia . 3. The most common form is primary achalasia , which has no known underlying cause. 4. It is considered the definitive treatment for achalasia . 5. Priapism has also been linked to achalasia . 6. This happens in a condition called achalasia . 7. In human pathology a condition known as achalasia may predispose a person to slowly develop megaesophagus. 8. Thus, it seems there is an autoimmune context to achalasia , most likely caused by viral triggers. 9. Some causes of achalasia of the esophagus are : infections, neurological problems, connective tissue problems, etc. 10. Swallowing difficulties ( secondary achalasia ) may be the first symptom of digestive disturbances and may lead to malnutrition.