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What are the causes of inability to intake food and water (dysphagia)?

Achalasia
Diffuse esophageal spasm
Stricture
Cancer
Forging bodies
GERD
Neurological disorders
Neurological damage

What are the complication of dysphagia?

Malnutrition
Weight loss
Dehydration
Chocking

What are the required investigation?

Chest x-ray
Dynamic swallowing studies
Endoscope

What is the treatment?

Esophageal dilation
Surgery
Medication as corticosteroids
Change eating habits
Try food with different textures
Avoid alcohol and smoking
 
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