Hypogammaglobulinemia and imaging features in a patient with infantile free sialic acid storage disease (ISSD) and a novel mutation in the SLC17A5 gene

Tamara Žigman*, Danijela Petković Ramadž A, Mario Lušić, Marija Zekušić, Dorotea Ninković, Danilo Gardijan, Kristina Potočki, Lana Omerza, Lucija Beljan, Kamelija Žarković, Jennifer Kerkhof, Marija Ljubojević, Monique De Sain-Van Der Velden, Jurica Vuković, Ksenija Fumić, Bekim Sadiković, Ivo Barić

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background Infantile free sialic acid storage disease (ISSD) is a severe multisystemic disorder characterized by the accumulation of free sialic acid in lysosomes. Case presentation The patient presented prenatally with fetal ascites and large scrotal hernias, without pleural or pericardial effusion. During the infantile period, he was diagnosed with permanent isolated immunoglobulin G (IgG) hypogammaglobulinemia, which thus far has rarely been associated with ISSD. The analysis of the SLC17A5 gene revealed a novel homozygous 94 bp gene deletion. We further provide a detailed description of pre- and postnatal clinical and radiographic findings. Conclusions Fetal ascites could be the first sign of several lysosomal storage diseases (LSDs), including ISSD. The analysis of LSD gene panels is an effective approach to diagnosis in the case of non-specific symptoms and when specific biochemical tests are not easily available.

Original languageEnglish
Pages (from-to)1155-1159
Number of pages5
JournalJournal of Pediatric Endocrinology and Metabolism
Volume31
Issue number10
DOIs
Publication statusPublished - Oct 2018

Keywords

  • fetal ascites
  • fetal MRI
  • free sialic acid storage disease
  • Humans
  • Infant
  • Male
  • Sialic Acid Storage Disease/blood
  • Symporters/genetics
  • Brain/diagnostic imaging
  • Magnetic Resonance Imaging
  • Organic Anion Transporters/genetics
  • Ultrasonography
  • Agammaglobulinemia/blood
  • Mutation

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