Hi we just took our 30 year old son to the PCP to check out lower L back pain, blood in stool x3, blood in urine x1, fatigue, loss of 11 lbs in 2 months, most recently: fever x5 days, vomiting x2 in one morning. PCP sent us to the ER for Labs and CT Scan which showed an abdominal mass. We were told to go to Johns Hopkins. please advise.