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Review
. 2023 Sep 14;18(1):291.
doi: 10.1186/s13023-023-02889-x.

Imerslund-Gräsbeck syndrome: a comprehensive review of reported cases

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Review

Imerslund-Gräsbeck syndrome: a comprehensive review of reported cases

Sandra D K Kingma et al. Orphanet J Rare Dis. .

Abstract

Imerslund-Gräsbeck syndrome (IGS) is a rare autosomal recessive disorder characterized by vitamin B12 malabsorption. Most patients present with non-specific symptoms attributed to vitamin B12 deficiency, and proteinuria. Patients may if untreated, develop severe neurocognitive manifestations. If recognized and treated with sufficient doses of vitamin B12, patients recover completely. We provide, for the first time, an overview of all previously reported cases of IGS. In addition, we provide a complete review of IGS and describe two new patients.

Keywords: Cobalamin deficiency; Imerslund-Gräsbeck syndrome; Vitamin B12 deficiency; Vitamin B12 malabsorption.

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Conflict of interest statement

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