2017, Number 6
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Ann Hepatol 2017; 16 (6)
Cryptogenic Cirrhosis and Sitosterolemia: A Treatable Disease If Identified but Fatal If Missed
Bazerbachi F, Conboy EE, Mounajjed T, Watt KD, Babovic-Vuksanovic D, Patel SB, Kamath PS
Language: Spanish
References: 26
Page: 970-978
PDF size: 516.88 Kb.
ABSTRACT
Sitosterolemia is an autosomal recessive metabolic disease caused by mutations in
ABCG5 or
ABCG8 genes which encode for the
(ATP)-binding cassette (ABC) transporters that are responsible for the trafficking of xenosterols. Liver involvement is not a recognized
manifestation of this disease, and cirrhosis has been reported only once in the medical literature. We describe a fatal case of a
21-year old South Asian male who presented with decompensated cirrhosis, and biochemical abnormalities consistent with sitosterolemia.
Genetic testing showed a homozygous pathogenic mutation in
ABCG5, confirming the diagnosis. Sitosterolemia is a rare, but
likely under-recognized condition, and a high degree of suspicion is imperative to make the diagnosis. We propose that sitosterolemia
should be included in the differential diagnosis for patients with cryptogenic cirrhosis, especially as there are effective oral therapies
to treat this condition. Newly diagnosed sitosterolemia patients should undergo a thorough hepatology evaluation and follow-up to
evaluate for the presence, development, and progression of any hepatic involvement.
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