Gastrointestinal stromal tumor (GIST) is a rare cancer affecting the digestive tract or nearby structures within the abdomen. GI stromal tumor, or GIST cancer, is a sarcoma. GIST cancers arise either from cells called Interstitial Cells of Cajal (ICCs) or from less differentiated stem cells or precursor cells that can develop into ICCs.
Irritable bowel syndrome (IBS) is a common, long-term condition of the digestive system. It can cause bouts of stomach cramps, bloating, diarrhoea and constipation. The symptoms vary between individuals and affect some people more severely than others. They tend to come and go in periods lasting a few days to a few months at a time, often during times of stress or after eating certain foods. Irritable bowel syndrome or IBS affects mostly women. Causes are unknown. IBS symptoms include diarrhea, constipation, and abdominal cramps. IBS treatments include diet and lifestyle changes and medications.