Early onset lysosomal acid lipase deficiency presenting as secondary hemophagocytic lymphohistiocytosis: Two infants treated with sebelipase alfa

Clin Res Hepatol Gastroenterol. 2018 Oct;42(5):e77-e82. doi: 10.1016/j.clinre.2018.03.012. Epub 2018 Apr 26.

Abstract

Two unrelated infants were diagnosed with and initially treated for hemophagocytic lymphohistiocytosis (HLH), but progressed to cholestasis and liver failure. Early onset lysosomal acid lipase deficiency (EO-LAL-D) was suspected due to lymphocytes with cytoplasmic vacuolation and/or adrenal calcifications and confirmed by enzymatic and genetic analysis. Enzyme replacement therapy with sebelipase alfa was implemented, but both children died, despite initial improvement. Since this inborn error of metabolism progresses rapidly in infants, early diagnosis is crucial, and appropriate treatment should be started as soon as possible. The authors suggest that the diagnosis of EO-LAL-D should be considered in infants with symptoms of HLH.

Keywords: Early onset lysosomal acid lipase deficiency; Hemophagocytic lymphohistiocytosis; Hepatosplenomegaly; Neonatal cholestasis; Sebelipase alfa; Wolman disease.

Publication types

  • Case Reports

MeSH terms

  • Age of Onset
  • Female
  • Humans
  • Infant, Newborn
  • Lymphohistiocytosis, Hemophagocytic / etiology
  • Male
  • Sterol Esterase / therapeutic use*
  • Wolman Disease / complications
  • Wolman Disease / drug therapy*

Substances

  • Sterol Esterase
  • Sebelipase alfa