GTR Home > Conditions/Phenotypes > Abetalipoproteinaemia


Excerpted from the GeneReview: Abetalipoproteinemia
Abetalipoproteinemia typically presents in infancy with failure to thrive, diarrhea, vomiting, and malabsorption of fat. Hematologic manifestations may include acanthocytosis (irregularly spiculated erythrocytes), anemia, reticulocytosis, and hemolysis with resultant hyperbilirubinemia. Malabsorption of fat-soluble vitamins (A, D, E, and K) can result in an increased international normalized ratio (INR). Untreated individuals may develop atypical pigmentation of the retina that may present with progressive loss of night vision and/or color vision in adulthood. Neuromuscular findings in untreated individuals including progressive loss of deep tendon reflexes, vibratory sense, and proprioception; muscle weakness; dysarthria; and ataxia typically manifest in the first or second decades of life.

Available tests

33 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Genes See tests for all associated and related genes

  • Also known as: ABL, MTP, MTTP
    Summary: microsomal triglyceride transfer protein

Clinical features


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Practice guidelines

  • EFNS, 2010
    EFNS guidelines on the molecular diagnosis of ataxias and spastic paraplegias.
  • EuroGentest, 2012
    Clinical utility gene card for: Abetalipoproteinaemia

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