False-positive reactions for porphobilinogen. Detection by butanol extraction and report of a case.
D000230:Adenocarcinoma; D000328:Adult; D000438:Alcohols; D055598:Chemical Phenomena; D002621:Chemistry; D003937:Diagnosis, Differential; D006801:Humans; D007415:Intestinal Obstruction / Q000175:diagnosis*; D008297:Male; D011164:Porphyrias / Q000175:diagnosis*; D011166:Porphyrins; D012811:Sigmoid Neoplasms / Q000175:diagnosis*; D014556:Urine
D000438:Alcohols; D011166:Porphyrins