Abstract
We report a very rare case of HEREDITARY ANGIOEDEMA, presenting as recurrent acute abdomen. A 22 yr old Maharastrian male, law college student, got admitted for about fifteen times in previous three years for severe, acute onset, upper abdominal pain, vomiting, distention and acute exudative inflammatory ascites .The whole episode used to subside spontaneously within 2-3 days with or without conservative general management .He underwent various investigations from far basic type, to advanced and invasive type with each recurrence but without definitive diagnosis. He also underwent unnecessary appendectomy. The authors did a review of his previous records, but didn't find any definite surgical or medical cause for his acute abdomen. Obviously it was something rare. Authors did search for it in various surgical and medical literature and searched extensively on internet for rare causes of abdominal pain which guided them for further appropriate investigations and diagnose him as a case of HEREDITARY ANGIOEDEMA ,as his clinical features and C1-INH,C3-C4 levels were strongly in favour of it . It goes without saying that the internet has become a standard accessory to conventional literature for cases with diagnostic dilemmas and for treatment options as well.