hi. noted history of hepatomegaly, severe abdominal pain and increasing stomach size, affecting normal function. does your sister have a recent history of weight loss and other GI symptoms (such as bloatedness, nausea, vomiting, fever)? it is best if you consult with a doctor, preferably a general surgeon or a gastroenterologist, for physical examination and clinical evaluation. diagnostics (such as ct-scan of the abdomen, liver function tests, tumor marker levels, etc.) and management (medical and/or surgical if indications are found) will be directed accordingly. if the initial finding upon consult is acute abdomen, admission will be warranted and possible emergency exploratory laparotomy will be recommended. hope this helps. good day!! ~dr.kaye