oesophagus, small bowel and large bowel Flashcards

1
Q

What are the signs and symptoms of oesophageal disease?

A

Heartburn
Dysphasia
-Solids and liquids indicate dysmotility

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2
Q

What does CREST stand for?

A

This is the features of systemic sclerosis

  • Calcinosis
  • Raynaud phenomenom
  • Eosophageal dysmotility
  • Sclerodactyly
  • Telangiectasia
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3
Q

What are the clinical findings in hiatus hernia?

A
Heartburn
Noctural epigastric distress from reflux
Haematemesis
Ulceration and stricture
Bowel sounds heard over left lung base
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4
Q

What is the treatment for hiatus hernia?

A
Non-pharmacological
-Avoid foods that reduce lower oesophageal sphincter tone e.g. cofee, chocolate
-Sleep with head of bed elevated
-Avoid eating large quantities of food
Pharmacological
-H2 antagonists
-PPI
Surgery if indicated
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5
Q

What are the signs and symptoms of GORD?

A
Heartburn
Nocturnal cough/asthma
Acid damage to enamel
Abdominal fullness
bloating/belching
Barrett oesophagus
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6
Q

What is the treatment for GORD?

A

See hiatal hernia

Surgery if indicated - fundoplication - gastric wrap around oesophageal junction

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7
Q

What can cause infectious oesophagitis?

A
Presents with pain swallowing
Usually in AIDS
can be caused by HSV
Cytomegalovirus 
Oral candida
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8
Q

What is the management for oesophageal varices?

A

Endoscopy to diagnose/ can treat - ligation, scerotherapy
Insert NG tube to gastric lavage and can assess rate of bleeding
Beta blockers decerase rate of recurrence
TIPS - transjugular intrahepatic portasystemic shunt can be used

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9
Q

What is the difference between mallory-weiss syndrome and boerhaave syndrome?

A

Mallory weiss is a mucosal tear that is vertical not full perforation
Boerhaave is a complete perforation - can cause pneumomediastinum

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10
Q

What is the pathogenesis and findings of achalasia?

A

This is when there is loss of the myenteric nerve fibres which causes dilation of the oesophagus with absent peristalsis
Clinical findings:
-nocturnal regurgitation of undigested food
-dysphasia for solids and liquids
-chest pain and heartburn
-frequent hiccups
-nocturnal cough from aspiration

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11
Q

What is the diagnosis and treatment of achalasia?

A
Abnormal barium swallow - bird beak appearance
Non pharmacological
-Pneumatic dilation - opens LOS
-Oesophagomyotomy
Pharacological
-Long acting nitrates
-Calcium channel blockers
-Botulinum toxin injection
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12
Q

What are the common types of oesophageal carcinomas and where do they occur?

A

Small cell carcinoma - upper and middle thirds of oesophagus

Adenocarcinoma - glandular cells - lower third of oesophagus

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13
Q

What are the clinical findings for oesophageal carcinoma?

A

Dysphagia for solids initially
rapid weight loss
Painless enlarged supraclvicular lymph nodes
Dry cough and haemoptysis - tracheal invasion
Hoarseness - laryngeal nerve invasion
Hypercalcaemia - parathyroid hormone released by cancer

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14
Q

What are the T 1 to T 4 types of oesophgeal carcinoma?

A

T1 - confined to submucosa
T2 - Invasion into the muscularis propria
T3 - invasion into the peri-oesophageal adventitia
T4 - invasion into the pleua, pericardium and other organs

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15
Q

What are some signs and symptoms of stomach disease?

A

haematemesis - ost commonly due to peptic ulcer disease

Melena

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16
Q

What are some causes of acute gastritis?

A
NSAIDs
Alcohol
helicobacter pylori
CMV
Burns
17
Q

What are the common causes of chronic gastritis?

A

H. Pylori infection - gram negative

Secretes urease and proteases that cause gastritis

18
Q

How is H pylori infection diagnosed?

A

With a urea breath test and stool antigen test

19
Q

What is the staging of stomach cancers?

A
T1 - confined to submucosa
T2 - Invasion into the muscularis propria
T3 - invasion into the subserosa
T4a - invasion onto the peritoneum
T4b - invasion into other organs
20
Q

What is the most common stomach cancer?

A

Gastric adenocarcinoma

21
Q

What are the signs and symptoms of small bowel disease?

A

Colicky pain - symptom of bowel obstruction
Diarrhea - may how infaction or malabsorption
Anaemia - due to iron, folic acid, B12 malabsorption

22
Q

What are the signs and symptoms of large bowel disease?

A
Diahrrhea - infection, IBD
Dysentery - bloody diahorrea with mucus
Pain
Tenesmus
Iron deficiency
23
Q

What are some common causes of malabsorption?

A

Pancreatic insufficiency - chronic pancreatitis
Bile salt/acid deficiency
Small bowel disease e.g. coeliac

24
Q

What is the pathogenesis in coeliac disease?

A

T cell and IgA response against gluten causes loss of villus, elongation of crypts and increase in the number of intra-epithelial lymphocytes

25
Q

What is whipples disease?

A

Accumulation of foamy macrophages in the lamina propria that contains bacteria

26
Q

What are the characteristics of crohns vs UC?

A

Crohns is characterised by transmural granulomatous inflammation whereas UC is not transmural and are pseudopolyps. Crohns is skip lesions whereas UC is continous.

27
Q

What is Meckel’s diverticulum? How do you remember it?

A
This is a remenant of an embryonic duct causing an outpouching of the gut
2222
2 inches long
2 feet proximal to the iliocoecal valce
2% of population
2% symptomatic
28
Q

What is the commonest type of tumour in the small bowel?

A

lymphomas

29
Q

What is angiodsyplasia?

A

Vascular malformation that causes - Thin walled blood vessels in the mucosa and submucosa are prone to rupturing

30
Q

What are the commonest polyps of the colon?

A

Hyperplastic polyps they show increased cellularity of crypts with heaped up epithelium

31
Q

What are the commonest tumours of the colon?

A

Adenocarcinomas

32
Q

What are the stages of colon cancer?

A

pT1 Confined to the submucosa
pT2 Invasion into, but not through, the muscularis propria
pT3 Invasion into the subserosa
pT4 Invasion onto the peritoneal surface or adjacent organs