<s>[INST] HELLO SIR...i am suffering from abdominal discomfort for last 2 months ...yesterday i did an USG...It is showing ascites .. & then i did CECT OF abdomen... it is showing rectosigmoid narrowing...meanwhile peritoneal fluid analysis revealed..lymphocytosis,high ADA(109),negative AFB,Negative M cells....now WHAT SHUOLD I FURTHER DO???? [/INST] The further course of action should be as follows::Colonoscopy to find out and to take biopsy from the recto-sigmoid narrowing area to see whether this is due to Cancer or Tuberculosis. Once the report is available the treatment will be according to it. If this is tuberculosis and there are so symptoms and signs of obstruction you can go for anti-tubercular treatment for 6 to 9 months according to the Doctors advise. If this is a Cancer you have to go for surgery as the results will be fine as the detection is early, and you have not mentioned any nodes in the Ultrasonography and CT can. </s>