Causes
Types of mechanical block
1. Malignant stricture Esophageal cancer Gastric cancer Pharyngeal cancer 2. Benign strictures Esophageal web Peptic stricture 3. Extrinsic pressure Lung cancer Mediastinal nodes Retrosternal goiter AA Left atrial enlargement 4. Pharyngeal pouch
Motility disorders
Achalasia Diffuse esophageal spasm Systemic sclerosis Myasthenia gravis Bulbar palsy Pseudobulbar palsy Syringonulnia Bulbar poliomyelitis Chagas
Key history questions
Medication, radiation
What is achalasia
The lower esophageal sphincter fails to relax->dysphagia, regurgitation, substernal cramps, weight loss.
Treatment with with endoscopic balloon dilitation and PPI
Multidisciplinary team
Investigations
TFTs CSF (MS) Botulinum toxin assay Liver enzymes Ceruloplasmin, 24 hour copper CK ACHr Antibodies->MG AntiDNA, ANA->scleroderma
Endoscopy->OGD
Barium swallow->structural when OGD fails to identify