Thanks for your Query. You have lump (mass) in left upper side of abdomen ie. left hypochondriac region. It may be Intra Abdominal or from abdominal wall. The main intraabdominal to get enlarge in left upper abdomen is most probably spleen
. If it is in abdominal wall it may be a Lipoma
. If your lump is in spleen ( Splenomegaly
) you must need immediate treatment and you have to undergo some other investigations like blood test
abdomen. If necessary u may have to do CT or MRI abdomen to confirm the diagnosis. First of all you have to consult with both general physician and surgeon.