Wednesday 26 October 2016

True regarding cancer colon | PGI based MCQs


True regarding cancer colon 

A. Obstructive features are more common with right colon 
B. 40% cases at presentation show liver metastasis 
C. Resection possible in25% cases 
D. More common in AIDS patients
E. mortality is as high as 60%



The Answer is. (B) 40% cases at presentation show liver metastasis
• Liver is the most common site of metastasis. Patient may present for the first time with liver metastasis, It is involved in 2/3rd of cases at the time of death; and 1/3rd of cases of recuring colorectal carcinoma.
• Patient with solitary liver metastasis with clinical or radiological evidence of additional tumour involvement should be considered for liver resection.
• Anal Cancer risk is increased both in men and women with AIDS probably immunosuppression permits more severe human parpilloma virus infection.
• Approx 20% of pt’s have metastatic disease at the time of initial diagnosis and another 30% eventually develop metastasis. Long term survival is 55%. Resection of isolated (1 to 3) liver or lung metastasis may result in long-term (5 years) survival in 20-40% of cases.
• Combination therapy provides significant improvement in tumour response rate (40%).

• Almost 90% of the patients have tumours that can be resected completely and mortality rate ranges from 2% to 10%.