Pathology of GI tract (CP Lec 20)

Question 1

What cells line most of the oesophagus?

Answer 1

Squamous epithelium

Question 2

What lines the part of the oesophagus below the diaphragm?

Answer 2

Glandular Columnar Mucousa

Question 3

what are the causes (aetiology) of inflammation of the oesophagus (Oesophagitis)?

Answer 3

Bacterial
Viral e.g. HSV1, CMV
Fungal e.g. Candida

Chemical e.g. ingestion of corrosive substances, or gastric reflux

Question 4

What are the risk factors of reflux oesophagitis?

Answer 4

• defective lower oesophageal sphincter
• Hiatus hernia
• increased intra-abdominal pressure
• increased gastric fluid volume due to gastric outflow stenosis