Pancreatic Cancer

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  • 70% in head gland, 30% body or tail
  • highly malignant
  • 6500 deaths pa

Risk Factors

  • Cigarette smoking
  • previous gastric resection
  • 3x more common in women
  • peak incidence 60-80

Spread

  • Direct
    • common bile duct
    • duodenum
    • portal vein
  • lymph nodes
    • para-duodenal peritoneum
    • coeliac axis
    • porta hepatis
    • lesser and greater curves of stomach
    • hilum of spleen
  • Blood
    • liver
    • lungs, etc.

Presentation

Symptoms

  • Weight loss (80%)
  • Epigastric pain (60%)
  • Obstructive Jaundice (50%)
    • (head of pancreas, secondaries in porta hepatis)
  • Acute pancreatitis (15%)
  • Diabetes mellitus (before or after diagnosis)
  • Gastric outlet obstruction
  • Thrombophlebitis migrans
  • Pancreatic steatorrhoea

Also

  • Deep Boring back pain
  • fatigue
  • malaise
  • indigestion
  • pruritis

Signs

  • extremely rare <50, mean age 65
  • palpable epigastric mass
  • palpable gallbladder
  • hepatomegaly
  • thrombophlebitis migrans
  • splenomegaly (rarely)
  • Virchows node
  • Jaundice
    • develops insidiously over several weeks
    • deep greenish-yellow hue
    • pruritus and other distressing symptoms uncommon
    • gall bladder palpable (Courvisiers law)
    • Obstruction by compression by
      • head of pancreas
      • metastatic lymph nodes in porta hepatis
      • (liver mets rarely cause jaundice)
      • unremitting and progressively deepening jaundice
        • (cf gall stones - fluctuating, gall bladder pain)

Investigations

  • Hb
  • FBC
  • ESR
  • LFTs
  • Blood sugar
  • ????FOBs +ve
  • USS
    • masses in pancreas (often small mass obscured by bowel gas)
    • liver
    • dilated bile ducts
    • stones
  • ERCP
    • duct obstruction
    • may show small tumour
  • CT scan
    • May not detect tumours <2cm
    • Degree of invasion
    • metastases
    • guided biopsy

Treatment

  • Only 20% have apparently localised disease with potential for cure by resection
  • Pancreaticoduodenectomy Whipples or PPPD
    • operative mortality 5% +
    • 5 year survival 20% where resection performed
  • 5 fu chemotherapy & radiotherapy extend life from 6 to 10 months
  • Adequate analgesia
    • blockade of coeliac ganglion
  • Total pancreatectomy
  • Distal pancreatectomy
  • Palliative decompression - Triple bypass
  • Endoscopic/percutaneous stenting

Prognosis

  • Median survival 
    • 5 months with palliative therapy
    • 18 months with surgery (possible in 8-25% patients)
  • Only 2-10% survive 5 years

Other Pancreatic tumours

  • Gastrinoma
  • Insulinoma

 


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