Abnormal Sulfobromophthalein Metabolism in Rotor's Syndrome and Obligate Heterozygotes

Enrique Wolpert, Flora M. Pascasio, Allan W. Wolkoff, Irwin M. Arias

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45 Scopus citations


Rotor's syndrome is an inheritable disorder characterized by chronic nonhemolytic, predominantly conjugated hyperbilirubinemia without abnormal hepatic pigmentation.1 2 3 4 Because of clinical similarities, Rotor's syndrome has been considered to be a variant of the Dubin-Johnson syndrome.2,3,5 Recent studies of urinary coproporphyrin excretion, however, demonstrate that the two syndromes are distinct pathophysiologic entities.6 Studies of hepatic transport of sulfobromophthalein in patients with the Dubin-Johnson syndrome reveal a rise in plasma sulfobromophthalein concentration 90 to 120 minutes after intravenous injection of 5 mg of dye per kilogram.7 8 9 10 Moreover, hepatic transport maximum (Tm) is virtually zero, with a normal relative storage capacity (S),.

Original languageEnglish (US)
Pages (from-to)1099-1101
Number of pages3
JournalNew England Journal of Medicine
Issue number19
StatePublished - May 12 1977

ASJC Scopus subject areas

  • Medicine(all)


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