title: [Interesting urinary findings in acute intermittent porphyria].
abstract: The authors describe an uncommon case of a patient with acute intermittent porphyria whose urine on standing, when exposed to light and air, turned dark and eventually black. The reason was increased excretion of porphobilin. The urine continued moreover increased amounts of Thormählen-positive substances, typical melanogens were not detected, however. The authors wish to draw attention to possible diagnostic errors which arise due to erroneous interpretation of laboratory results.
authors.affiliation: I. interní klinika 1. lékarské fakulty KU, Praha.
authors.forename: I
authors.initials: I
authors.lastname: Rychlík
authors.forename: J
authors.initials: J
authors.lastname: Sperl
authors.forename: Z
authors.initials: Z
authors.lastname: Schwippelová
authors.forename: M
authors.initials: M
authors.lastname: Jirsa
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D017118:Porphyria, Acute Intermittent / Q000652:urine*; D011166:Porphyrins / Q000652:urine
chemical_list: D011166:Porphyrins; C015477:porphobilin
vernacular_title: Zajímavý mocový nález u akutní intermitentní porfyrie.