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Association of Carcinoma Esophagus

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Q) Adenocarcinoma of esophagus is associated with which of the following? ( #All Esophagus MCQS) 

a) Achalasia cardia

b) Barrett's disease

c) Human Papilloma virus (HPV)

d) Alcohol use

Answer - b

Association of carcinoma esophagus is with a number of risk factors. Both squamous cell carcinoma and adenocarcinoma of esophagus have different etiologies

Risk factors for Adenocarcinoma are                                                Risk factor for SCC 

  1. Tobacco                                                                                                   1. Alcohol
  2. GERD                                                                                                       2. tobacco 
  3. Obesity                                                                                                     3. Achalasia
  4. Barrett                                                                                                      4. Caustic injury of esophagus
  5. H/o previous radiation for breast cancer                                         5. Previous radiation of CA breast                

                                                                                                                             6. H/o head and neck cancer

                                                                                                                             7. Plummer vinson and tylosis

 

Achalasia is associated with both Adenocarcinoma and SCC ( Table 35.2 - Shackelford) 

Hepatic blood flow

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Q. All are true regarding hepatic blood flow except
A. Liver has dual blood supply from portal vein and hepatic artery
B. 70% of liver oxygen comes from the hepatic artery
C. 70-80% of blood supply to the liver is from portal vein

d) Liver receives 25% of cardiac output

Answer for premium

The explanation discusses how much blood and oxygen goes through portal vein and hepatic artery to the liver

What is hepatic artery buffer response??