My mother-in-law is 78 yrs. old has lost approx. 50 lbs. unexplained weight within the last yr. She has chronic constipation, takes Miralax, has low thyroid, is on medication, had heart cath last month, arteries are OK, caroid CT and abdominal CT W/contrast done, findings, were abdom. fiscures, twisted colon, small spot on lung, 50 yr. smoker, still smoking. Dr. wants to do exploratory laporospy to fix twisted colon, would the CT scan show if there were a malignancy, or could this only be determined by the surgery? She is 5'7" 108 lbs. very malnutritioned. We are very concerned about her having this procedure done, she is so weak, dizzy, fatigued, and general malaize.